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38979069 = 341316903
BaseRepresentation
bin1001010010110…
…0010111111101
32201100100020020
42110230113331
534434312234
63511242353
7652213413
oct224542775
981310206
1038979069
1120003608
12110793b9
1380c9c4c
1452692b3
15364e549
hex252c5fd

38979069 has 8 divisors (see below), whose sum is σ = 53239872. Its totient is φ = 25352160.

The previous prime is 38979067. The next prime is 38979091. The reversal of 38979069 is 96097983.

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

It is not a de Polignac number, because 38979069 - 21 = 38979067 is a prime.

It is a super-2 number, since 2×389790692 = 3038735640213522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38979067) 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, 158329 + ... + 158574.

It is an arithmetic number, because the mean of its divisors is an integer number (6654984).

Almost surely, 238979069 is an apocalyptic number.

It is an amenable number.

38979069 is a deficient number, since it is larger than the sum of its proper divisors (14260803).

38979069 is a wasteful number, since it uses less digits than its factorization.

38979069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 316947.

The product of its (nonzero) digits is 734832, while the sum is 51.

The square root of 38979069 is about 6243.3219522943. The cubic root of 38979069 is about 339.0604655417.

The spelling of 38979069 in words is "thirty-eight million, nine hundred seventy-nine thousand, sixty-nine".

Divisors: 1 3 41 123 316903 950709 12993023 38979069