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80852277 = 31119128951
BaseRepresentation
bin1001101000110…
…11010100110101
312122010201110210
410310123110311
5131144233102
612004540033
72001142632
oct464332465
9178121423
1080852277
1141703570
12230b1619
131399b2ac
14aa49189
15717136c
hex4d1b535

80852277 has 16 divisors (see below), whose sum is σ = 123793920. Its totient is φ = 46422000.

The previous prime is 80852273. The next prime is 80852279. The reversal of 80852277 is 77225808.

It is not a de Polignac number, because 80852277 - 22 = 80852273 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80852273) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 63849 + ... + 65102.

It is an arithmetic number, because the mean of its divisors is an integer number (7737120).

Almost surely, 280852277 is an apocalyptic number.

It is an amenable number.

80852277 is a deficient number, since it is larger than the sum of its proper divisors (42941643).

80852277 is a wasteful number, since it uses less digits than its factorization.

80852277 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128984.

The product of its (nonzero) digits is 62720, while the sum is 39.

The square root of 80852277 is about 8991.7894214667. The cubic root of 80852277 is about 432.4116821012.

The spelling of 80852277 in words is "eighty million, eight hundred fifty-two thousand, two hundred seventy-seven".

Divisors: 1 3 11 19 33 57 209 627 128951 386853 1418461 2450069 4255383 7350207 26950759 80852277