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137312112 = 2437279739
BaseRepresentation
bin10000010111100…
…11011101110000
3100120101011210210
420023303131300
5240122441422
621343024120
73255063600
oct1013633560
9316334723
10137312112
1170566693
1239b9b040
13225a8a92
1414344c00
15c0c510c
hex82f3770

137312112 has 120 divisors (see below), whose sum is σ = 418425600. Its totient is φ = 38683008.

The previous prime is 137312053. The next prime is 137312141. The reversal of 137312112 is 211213731.

It is a happy number.

137312112 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×1373121122 = 37709232203801088, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 185439 + ... + 186177.

It is an arithmetic number, because the mean of its divisors is an integer number (3486880).

Almost surely, 2137312112 is an apocalyptic number.

137312112 is a gapful number since it is divisible by the number (12) 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 137312112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (209212800).

137312112 is an abundant number, since it is smaller than the sum of its proper divisors (281113488).

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

137312112 is a wasteful number, since it uses less digits than its factorization.

137312112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 843 (or 830 counting only the distinct ones).

The product of its digits is 252, while the sum is 21.

The square root of 137312112 is about 11718.0250895789. The cubic root of 137312112 is about 515.9048559629.

Adding to 137312112 its reverse (211213731), we get a palindrome (348525843).

The spelling of 137312112 in words is "one hundred thirty-seven million, three hundred twelve thousand, one hundred twelve".

Divisors: 1 2 3 4 6 7 8 12 14 16 21 24 28 42 48 49 56 79 84 98 112 147 158 168 196 237 294 316 336 392 474 553 588 632 739 784 948 1106 1176 1264 1478 1659 1896 2212 2217 2352 2956 3318 3792 3871 4424 4434 5173 5912 6636 7742 8848 8868 10346 11613 11824 13272 15484 15519 17736 20692 23226 26544 30968 31038 35472 36211 41384 46452 58381 61936 62076 72422 82768 92904 108633 116762 124152 144844 175143 185808 217266 233524 248304 289688 350286 408667 434532 467048 579376 700572 817334 869064 934096 1226001 1401144 1634668 1738128 2452002 2802288 2860669 3269336 4904004 5721338 6538672 8582007 9808008 11442676 17164014 19616016 22885352 34328028 45770704 68656056 137312112