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80946087 = 335477607
BaseRepresentation
bin1001101001100…
…10001110100111
312122022111011020
410310302032213
5131210233322
612010542223
72002013265
oct464621647
9178274136
1080946087
1141767aa2
1223137973
1313a01bc1
14aa71435
15718e05c
hex4d323a7

80946087 has 8 divisors (see below), whose sum is σ = 107972736. Its totient is φ = 53941752.

The previous prime is 80946071. The next prime is 80946109. The reversal of 80946087 is 78064908.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 80946087 - 24 = 80946071 is a prime.

It is a super-2 number, since 2×809460872 = 13104538001223138, which contains 22 as substring.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80946067) 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, 6838 + ... + 14444.

It is an arithmetic number, because the mean of its divisors is an integer number (13496592).

Almost surely, 280946087 is an apocalyptic number.

80946087 is a deficient number, since it is larger than the sum of its proper divisors (27026649).

80946087 is a wasteful number, since it uses less digits than its factorization.

80946087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11157.

The product of its (nonzero) digits is 96768, while the sum is 42.

The square root of 80946087 is about 8997.0043347772. The cubic root of 80946087 is about 432.5788547234.

The spelling of 80946087 in words is "eighty million, nine hundred forty-six thousand, eighty-seven".

Divisors: 1 3 3547 7607 10641 22821 26982029 80946087