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80770377 = 3157223769
BaseRepresentation
bin1001101000001…
…11010101001001
312121222120010110
410310013111021
5131134123002
612003104533
72000352102
oct464072511
9177876113
1080770377
1141657a86
1223072149
131396cc2c
14aa273a9
157156e6c
hex4d07549

80770377 has 16 divisors (see below), whose sum is σ = 109007360. Its totient is φ = 53194752.

The previous prime is 80770373. The next prime is 80770379. The reversal of 80770377 is 77307708.

It is not a de Polignac number, because 80770377 - 22 = 80770373 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80770373) 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, 104649 + ... + 105417.

It is an arithmetic number, because the mean of its divisors is an integer number (6812960).

Almost surely, 280770377 is an apocalyptic number.

It is an amenable number.

80770377 is a deficient number, since it is larger than the sum of its proper divisors (28236983).

80770377 is a wasteful number, since it uses less digits than its factorization.

80770377 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1152.

The product of its (nonzero) digits is 57624, while the sum is 39.

The square root of 80770377 is about 8987.2341128959. The cubic root of 80770377 is about 432.2656277470.

The spelling of 80770377 in words is "eighty million, seven hundred seventy thousand, three hundred seventy-seven".

Divisors: 1 3 157 223 471 669 769 2307 35011 105033 120733 171487 362199 514461 26923459 80770377