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38980839 = 312993613
BaseRepresentation
bin1001010010110…
…0110011100111
32201100102122210
42110230303213
534434341324
63511254503
7652221522
oct224546347
981312583
1038980839
1120004977
121107a433
1380ca9b1
145269bb9
15364ed29
hex252cce7

38980839 has 4 divisors (see below), whose sum is σ = 51974456. Its totient is φ = 25987224.

The previous prime is 38980831. The next prime is 38980841. The reversal of 38980839 is 93808983.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 38980839 - 23 = 38980831 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38980831) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6496804 + ... + 6496809.

It is an arithmetic number, because the mean of its divisors is an integer number (12993614).

Almost surely, 238980839 is an apocalyptic number.

38980839 is a deficient number, since it is larger than the sum of its proper divisors (12993617).

38980839 is a wasteful number, since it uses less digits than its factorization.

38980839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12993616.

The product of its (nonzero) digits is 373248, while the sum is 48.

The square root of 38980839 is about 6243.4637021448. The cubic root of 38980839 is about 339.0655975946.

The spelling of 38980839 in words is "thirty-eight million, nine hundred eighty thousand, eight hundred thirty-nine".

Divisors: 1 3 12993613 38980839