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78119052 = 2231136773
BaseRepresentation
bin1001010100000…
…00000010001100
312102222212012020
410222000002030
5124444302202
611430210140
71636000224
oct452000214
9172885166
1078119052
1140107000
12221b3950
13132521bb
14a537084
156cd15bc
hex4a8008c

78119052 has 96 divisors (see below), whose sum is σ = 206271744. Its totient is φ = 22999680.

The previous prime is 78119033. The next prime is 78119059. The reversal of 78119052 is 25091187.

It is a super-2 number, since 2×781190522 = 12205172570757408, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (78119059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1070088 + ... + 1070160.

It is an arithmetic number, because the mean of its divisors is an integer number (2148664).

Almost surely, 278119052 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 78119052, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (103135872).

78119052 is an abundant number, since it is smaller than the sum of its proper divisors (128152692).

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

78119052 is a wasteful number, since it uses less digits than its factorization.

78119052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180 (or 156 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 33.

The square root of 78119052 is about 8838.4982887366. The cubic root of 78119052 is about 427.4831373944.

The spelling of 78119052 in words is "seventy-eight million, one hundred nineteen thousand, fifty-two".

Divisors: 1 2 3 4 6 11 12 22 33 44 66 67 73 121 132 134 146 201 219 242 268 292 363 402 438 484 726 737 803 804 876 1331 1452 1474 1606 2211 2409 2662 2948 3212 3993 4422 4818 4891 5324 7986 8107 8833 8844 9636 9782 14673 15972 16214 17666 19564 24321 26499 29346 32428 35332 48642 52998 53801 58692 89177 97163 97284 105996 107602 161403 178354 194326 215204 267531 291489 322806 356708 388652 535062 582978 591811 645612 1070124 1165956 1183622 1775433 2367244 3550866 6509921 7101732 13019842 19529763 26039684 39059526 78119052