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38975157 = 32134361127
BaseRepresentation
bin1001010010101…
…1011010110101
32201100010212100
42110223122311
534434201112
63511212313
7652166124
oct224533265
981303770
1038975157
1120000681
1211077099
1380c8230
145267abb
15364d2dc
hex252b6b5

38975157 has 48 divisors (see below), whose sum is σ = 63551488. Its totient is φ = 22861440.

The previous prime is 38975149. The next prime is 38975161. The reversal of 38975157 is 75157983.

It is not a de Polignac number, because 38975157 - 23 = 38975149 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38975107) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 306828 + ... + 306954.

Almost surely, 238975157 is an apocalyptic number.

It is an amenable number.

38975157 is a deficient number, since it is larger than the sum of its proper divisors (24576331).

38975157 is a wasteful number, since it uses less digits than its factorization.

38975157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250 (or 247 counting only the distinct ones).

The product of its digits is 264600, while the sum is 45.

The square root of 38975157 is about 6243.0086496817. The cubic root of 38975157 is about 339.0491222836.

The spelling of 38975157 in words is "thirty-eight million, nine hundred seventy-five thousand, one hundred fifty-seven".

Divisors: 1 3 9 13 39 43 61 117 127 129 183 381 387 549 559 793 1143 1651 1677 2379 2623 4953 5031 5461 7137 7747 7869 14859 16383 23241 23607 34099 49149 69723 70993 100711 102297 212979 302133 306891 333121 638937 906399 999363 2998089 4330573 12991719 38975157