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38772897 = 361720947
BaseRepresentation
bin1001001111101…
…0000010100001
32200221212102020
42103322002201
534411213042
63503012053
7650364342
oct223720241
980855366
1038772897
111a982719
1210b9a029
138057157
1452140c9
15360d3ec
hex24fa0a1

38772897 has 8 divisors (see below), whose sum is σ = 51783456. Its totient is φ = 25805472.

The previous prime is 38772893. The next prime is 38772941. The reversal of 38772897 is 79827783.

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

It is not a de Polignac number, because 38772897 - 22 = 38772893 is a prime.

It is not an unprimeable number, because it can be changed into a prime (38772893) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8623 + ... + 12324.

It is an arithmetic number, because the mean of its divisors is an integer number (6472932).

Almost surely, 238772897 is an apocalyptic number.

It is an amenable number.

38772897 is a deficient number, since it is larger than the sum of its proper divisors (13010559).

38772897 is a wasteful number, since it uses less digits than its factorization.

38772897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21567.

The product of its digits is 1185408, while the sum is 51.

The square root of 38772897 is about 6226.7886586908. The cubic root of 38772897 is about 338.4616109199.

The spelling of 38772897 in words is "thirty-eight million, seven hundred seventy-two thousand, eight hundred ninety-seven".

Divisors: 1 3 617 1851 20947 62841 12924299 38772897