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80352612 = 22322232017
BaseRepresentation
bin1001100101000…
…01010101100100
312121012100001200
410302201111210
5131032240422
611550122500
71663662114
oct462412544
9177170050
1080352612
11413a211a
1222ab0430
1313854a32
14a959044
1570c32ac
hex4ca1564

80352612 has 18 divisors (see below), whose sum is σ = 203113638. Its totient is φ = 26784192.

The previous prime is 80352607. The next prime is 80352619. The reversal of 80352612 is 21625308.

It can be written as a sum of positive squares in only one way, i.e., 56791296 + 23561316 = 7536^2 + 4854^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (80352619) 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 5 ways as a sum of consecutive naturals, for example, 1115973 + ... + 1116044.

It is an arithmetic number, because the mean of its divisors is an integer number (11284091).

Almost surely, 280352612 is an apocalyptic number.

It is an amenable number.

80352612 is an abundant number, since it is smaller than the sum of its proper divisors (122761026).

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

80352612 is a wasteful number, since it uses less digits than its factorization.

80352612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2232027 (or 2232022 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 80352612 is about 8963.9618473084. The cubic root of 80352612 is about 431.5190764365.

The spelling of 80352612 in words is "eighty million, three hundred fifty-two thousand, six hundred twelve".

Divisors: 1 2 3 4 6 9 12 18 36 2232017 4464034 6696051 8928068 13392102 20088153 26784204 40176306 80352612