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389115076 = 227214092
BaseRepresentation
bin10111001100010…
…110110011000100
31000010012002112111
4113030112303010
51244103140301
6102340030404
712433265200
oct2714266304
91003162474
10389115076
1118a710a09
12aa392404
136280000c
143996db00
1524263551
hex17316cc4

389115076 has 27 divisors (see below), whose sum is σ = 792689709. Its totient is φ = 166645248.

The previous prime is 389115049. The next prime is 389115109. The reversal of 389115076 is 670511983.

The square root of 389115076 is 19726.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 4955076 + 384160000 = 2226^2 + 19600^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 275460 + ... + 276868.

Almost surely, 2389115076 is an apocalyptic number.

389115076 is the 19726-th square number.

It is an amenable number.

389115076 is an abundant number, since it is smaller than the sum of its proper divisors (403574633).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

389115076 is an equidigital number, since it uses as much as digits as its factorization.

389115076 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2836 (or 1418 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 40.

The cubic root of 389115076 is about 730.0613421900.

The spelling of 389115076 in words is "three hundred eighty-nine million, one hundred fifteen thousand, seventy-six".

Divisors: 1 2 4 7 14 28 49 98 196 1409 2818 5636 9863 19726 39452 69041 138082 276164 1985281 3970562 7941124 13896967 27793934 55587868 97278769 194557538 389115076