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80158132 = 22371134793
BaseRepresentation
bin1001100011100…
…01110110110100
312120211110021201
410301301312310
5131010030012
611542022244
71662222115
oct461616664
9176743251
1080158132
1141279a9a
1222a17984
13137b7362
14a90820c
157085857
hex4c71db4

80158132 has 24 divisors (see below), whose sum is σ = 145373256. Its totient is φ = 38642688.

The previous prime is 80158123. The next prime is 80158139. The reversal of 80158132 is 23185108.

It can be written as a sum of positive squares in 4 ways, for example, as 18284176 + 61873956 = 4276^2 + 7866^2 .

It is a super-2 number, since 2×801581322 = 12850652251458848, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 80158132.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80158139) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14328 + ... + 19120.

It is an arithmetic number, because the mean of its divisors is an integer number (6057219).

Almost surely, 280158132 is an apocalyptic number.

It is an amenable number.

80158132 is a deficient number, since it is larger than the sum of its proper divisors (65215124).

80158132 is a wasteful number, since it uses less digits than its factorization.

80158132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4947 (or 4945 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 28.

The square root of 80158132 is about 8953.1073935254. The cubic root of 80158132 is about 431.1706553738.

The spelling of 80158132 in words is "eighty million, one hundred fifty-eight thousand, one hundred thirty-two".

Divisors: 1 2 4 37 74 113 148 226 452 4181 4793 8362 9586 16724 19172 177341 354682 541609 709364 1083218 2166436 20039533 40079066 80158132