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137905458 = 23191209697
BaseRepresentation
bin10000011100001…
…00010100110010
3100121111022201120
420032010110302
5240300433313
621403443110
73263114505
oct1016042462
9317438646
10137905458
1170931459
123a226496
1322755b82
141445b13c
15c190d23
hex8384532

137905458 has 16 divisors (see below), whose sum is σ = 290327520. Its totient is φ = 43549056.

The previous prime is 137905441. The next prime is 137905459. The reversal of 137905458 is 854509731.

It is not an unprimeable number, because it can be changed into a prime (137905459) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 604735 + ... + 604962.

It is an arithmetic number, because the mean of its divisors is an integer number (18145470).

Almost surely, 2137905458 is an apocalyptic number.

137905458 is an abundant number, since it is smaller than the sum of its proper divisors (152422062).

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

137905458 is a wasteful number, since it uses less digits than its factorization.

137905458 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1209721.

The product of its (nonzero) digits is 151200, while the sum is 42.

The square root of 137905458 is about 11743.3154602948. The cubic root of 137905458 is about 516.6468886405.

The spelling of 137905458 in words is "one hundred thirty-seven million, nine hundred five thousand, four hundred fifty-eight".

Divisors: 1 2 3 6 19 38 57 114 1209697 2419394 3629091 7258182 22984243 45968486 68952729 137905458