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38913469 = 74123307
BaseRepresentation
bin1001010001110…
…0010110111101
32201020000020121
42110130112331
534430212334
63510014541
7651521230
oct224342675
981200217
1038913469
111aa692a1
1211047451
1380a612a
14524d417
153639db4
hex251c5bd

38913469 has 12 divisors (see below), whose sum is σ = 45597472. Its totient is φ = 32531040.

The previous prime is 38913461. The next prime is 38913491. The reversal of 38913469 is 96431983.

It is not a de Polignac number, because 38913469 - 23 = 38913461 is a prime.

It is a super-2 number, since 2×389134692 = 3028516139227922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38913461) 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, 10114 + ... + 13420.

Almost surely, 238913469 is an apocalyptic number.

It is an amenable number.

38913469 is a deficient number, since it is larger than the sum of its proper divisors (6684003).

38913469 is an equidigital number, since it uses as much as digits as its factorization.

38913469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3396 (or 3355 counting only the distinct ones).

The product of its digits is 139968, while the sum is 43.

The square root of 38913469 is about 6238.0661266133. The cubic root of 38913469 is about 338.8701509581.

The spelling of 38913469 in words is "thirty-eight million, nine hundred thirteen thousand, four hundred sixty-nine".

Divisors: 1 7 41 287 1681 3307 11767 23149 135587 949109 5559067 38913469