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38406265 = 520893677
BaseRepresentation
bin1001001010000…
…0100001111001
32200021020111021
42102200201321
534313000030
63451102441
7644306422
oct222404171
980236437
1038406265
111a752217
1210a41a21
137c59301
14515a649
15358997a
hex24a0879

38406265 has 8 divisors (see below), whose sum is σ = 46122120. Its totient is φ = 30701952.

The previous prime is 38406257. The next prime is 38406283. The reversal of 38406265 is 56260483.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 15872256 + 22534009 = 3984^2 + 4747^2 .

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 38406265 - 23 = 38406257 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 38406265.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8607 + ... + 12283.

It is an arithmetic number, because the mean of its divisors is an integer number (5765265).

Almost surely, 238406265 is an apocalyptic number.

It is an amenable number.

38406265 is a deficient number, since it is larger than the sum of its proper divisors (7715855).

38406265 is a wasteful number, since it uses less digits than its factorization.

38406265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5771.

The product of its (nonzero) digits is 34560, while the sum is 34.

The square root of 38406265 is about 6197.2788383290. The cubic root of 38406265 is about 337.3914127120.

The spelling of 38406265 in words is "thirty-eight million, four hundred six thousand, two hundred sixty-five".

Divisors: 1 5 2089 3677 10445 18385 7681253 38406265