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38875439 = 477871051
BaseRepresentation
bin1001010001001…
…1000100101111
32201011002002002
42110103010233
534423003224
63505122515
7651302321
oct224230457
981132062
1038875439
111aa42769
121102943b
138091a25
14523d611
15362d9ae
hex251312f

38875439 has 8 divisors (see below), whose sum is σ = 39790848. Its totient is φ = 37963800.

The previous prime is 38875433. The next prime is 38875453. The reversal of 38875439 is 93457883.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 38875439 - 24 = 38875423 is a prime.

It is a super-2 number, since 2×388754392 = 3022599514885442, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 38875393 and 38875402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38875433) 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, 36464 + ... + 37514.

It is an arithmetic number, because the mean of its divisors is an integer number (4973856).

Almost surely, 238875439 is an apocalyptic number.

38875439 is a deficient number, since it is larger than the sum of its proper divisors (915409).

38875439 is a wasteful number, since it uses less digits than its factorization.

38875439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1885.

The product of its digits is 725760, while the sum is 47.

The square root of 38875439 is about 6235.0171611632. The cubic root of 38875439 is about 338.7597227639.

The spelling of 38875439 in words is "thirty-eight million, eight hundred seventy-five thousand, four hundred thirty-nine".

Divisors: 1 47 787 1051 36989 49397 827137 38875439