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137992 = 2347367
BaseRepresentation
bin100001101100001000
321000021211
4201230020
513403432
62542504
71113211
oct415410
9230254
10137992
1194748
1267a34
134aa6a
1438408
152ad47
hex21b08

137992 has 16 divisors (see below), whose sum is σ = 264960. Its totient is φ = 67344.

The previous prime is 137983. The next prime is 137993. The reversal of 137992 is 299731.

137992 is a Rhonda number in base 12.

It is not an unprimeable number, because it can be changed into a prime (137993) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 193 + ... + 559.

It is an arithmetic number, because the mean of its divisors is an integer number (16560).

2137992 is an apocalyptic number.

It is an amenable number.

137992 is a deficient number, since it is larger than the sum of its proper divisors (126968).

137992 is a wasteful number, since it uses less digits than its factorization.

137992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 420 (or 416 counting only the distinct ones).

The product of its digits is 3402, while the sum is 31.

The square root of 137992 is about 371.4727446260. The cubic root of 137992 is about 51.6754939248.

The spelling of 137992 in words is "one hundred thirty-seven thousand, nine hundred ninety-two".

Divisors: 1 2 4 8 47 94 188 367 376 734 1468 2936 17249 34498 68996 137992