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137423048 = 23721918451
BaseRepresentation
bin10000011000011…
…10100011001000
3100120120210222112
420030032203020
5240140014143
621345241452
73256035200
oct1014164310
9316523875
10137423048
1170631a74
123a033288
1322617419
1414373400
15c0e7e18
hex830e8c8

137423048 has 48 divisors (see below), whose sum is σ = 315529200. Its totient is φ = 55792800.

The previous prime is 137423047. The next prime is 137423059. The reversal of 137423048 is 840324731.

It is a super-2 number, since 2×1374230482 = 37770188243220608, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (137423047) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1778 + ... + 16673.

It is an arithmetic number, because the mean of its divisors is an integer number (6573525).

Almost surely, 2137423048 is an apocalyptic number.

It is an amenable number.

137423048 is an abundant number, since it is smaller than the sum of its proper divisors (178106152).

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

137423048 is a wasteful number, since it uses less digits than its factorization.

137423048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18490 (or 18479 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 32.

The square root of 137423048 is about 11722.7576960372. The cubic root of 137423048 is about 516.0437536762.

Adding to 137423048 its reverse (840324731), we get a palindrome (977747779).

The spelling of 137423048 in words is "one hundred thirty-seven million, four hundred twenty-three thousand, forty-eight".

Divisors: 1 2 4 7 8 14 19 28 38 49 56 76 98 133 152 196 266 392 532 931 1064 1862 3724 7448 18451 36902 73804 129157 147608 258314 350569 516628 701138 904099 1033256 1402276 1808198 2453983 2804552 3616396 4907966 7232792 9815932 17177881 19631864 34355762 68711524 137423048