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38791390015025 = 5231233214821487
BaseRepresentation
bin10001101000111110100110…
…00001011010111000110001
312002100102100200000100100122
420310133103001122320301
520041024231320440100
6214300304001500025
711112404543503454
oct1064372301327061
9162312320010318
1038791390015025
11113a637741291a
124426046041615
1318850212862bb
149817286a149b
154740be1e4985
hex2347d305ae31

38791390015025 has 24 divisors (see below), whose sum is σ = 49866082366464. Its totient is φ = 29903150851200.

The previous prime is 38791390014967. The next prime is 38791390015051. The reversal of 38791390015025 is 52051009319783.

It is a de Polignac number, because none of the positive numbers 2k-38791390015025 is a prime.

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, 107230169 + ... + 107591318.

It is an arithmetic number, because the mean of its divisors is an integer number (2077753431936).

Almost surely, 238791390015025 is an apocalyptic number.

It is an amenable number.

38791390015025 is a deficient number, since it is larger than the sum of its proper divisors (11074692351439).

38791390015025 is a wasteful number, since it uses less digits than its factorization.

38791390015025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214821761 (or 214821756 counting only the distinct ones).

The product of its (nonzero) digits is 2041200, while the sum is 53.

The spelling of 38791390015025 in words is "thirty-eight trillion, seven hundred ninety-one billion, three hundred ninety million, fifteen thousand, twenty-five".

Divisors: 1 5 25 31 155 233 775 1165 5825 7223 36115 180575 214821487 1074107435 5370537175 6659466097 33297330485 50053406471 166486652425 250267032355 1251335161775 1551655600601 7758278003005 38791390015025