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112978404 = 223271153769
BaseRepresentation
bin1101011101111…
…10100111100100
321212120220020100
412232332213210
5212410302104
615113304100
72541205050
oct656764744
9255526210
10112978404
1158856390
1231a05030
131a538c36
141100cc60
159dba139
hex6bbe9e4

112978404 has 144 divisors (see below), whose sum is σ = 363242880. Its totient is φ = 28753920.

The previous prime is 112978399. The next prime is 112978409. The reversal of 112978404 is 404879211.

It is an interprime number because it is at equal distance from previous prime (112978399) and next prime (112978409).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (112978409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 146532 + ... + 147300.

It is an arithmetic number, because the mean of its divisors is an integer number (2522520).

Almost surely, 2112978404 is an apocalyptic number.

112978404 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 112978404, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (181621440).

112978404 is an abundant number, since it is smaller than the sum of its proper divisors (250264476).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

112978404 is a wasteful number, since it uses less digits than its factorization.

112978404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 850 (or 845 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 36.

The square root of 112978404 is about 10629.1299738031. The cubic root of 112978404 is about 483.4280119981.

It can be divided in two parts, 11297 and 8404, that added together give a triangular number (19701 = T198).

The spelling of 112978404 in words is "one hundred twelve million, nine hundred seventy-eight thousand, four hundred four".

Divisors: 1 2 3 4 6 7 9 11 12 14 18 21 22 28 33 36 42 44 53 63 66 77 84 99 106 126 132 154 159 198 212 231 252 308 318 371 396 462 477 583 636 693 742 769 924 954 1113 1166 1386 1484 1538 1749 1908 2226 2307 2332 2772 3076 3339 3498 4081 4452 4614 5247 5383 6678 6921 6996 8162 8459 9228 10494 10766 12243 13356 13842 16149 16324 16918 20988 21532 24486 25377 27684 32298 33836 36729 40757 48447 48972 50754 59213 64596 73458 76131 81514 96894 101508 118426 122271 146916 152262 163028 177639 193788 236852 244542 285299 304524 355278 366813 448327 489084 532917 570598 710556 733626 855897 896654 1065834 1141196 1344981 1467252 1711794 1793308 2131668 2567691 2689962 3138289 3423588 4034943 5135382 5379924 6276578 8069886 9414867 10270764 12553156 16139772 18829734 28244601 37659468 56489202 112978404