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38840755 = 557713463
BaseRepresentation
bin1001010000101…
…0100110110011
32201002022111111
42110022212303
534420401010
63504254151
7651066232
oct224124663
981068444
1038840755
111aa196a8
1211011357
13807bcc5
145230b19
15362358a
hex250a9b3

38840755 has 8 divisors (see below), whose sum is σ = 46693152. Its totient is φ = 31016448.

The previous prime is 38840743. The next prime is 38840759. The reversal of 38840755 is 55704883.

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 38840755 - 25 = 38840723 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38840759) 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, 3847 + ... + 9616.

It is an arithmetic number, because the mean of its divisors is an integer number (5836644).

Almost surely, 238840755 is an apocalyptic number.

38840755 is a deficient number, since it is larger than the sum of its proper divisors (7852397).

38840755 is a wasteful number, since it uses less digits than its factorization.

38840755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14045.

The product of its (nonzero) digits is 134400, while the sum is 40.

The square root of 38840755 is about 6232.2351528164. The cubic root of 38840755 is about 338.6589475829.

The spelling of 38840755 in words is "thirty-eight million, eight hundred forty thousand, seven hundred fifty-five".

Divisors: 1 5 577 2885 13463 67315 7768151 38840755