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80950671 = 349710303
BaseRepresentation
bin1001101001100…
…11010110001111
312122022201110000
410310303112033
5131210410141
612011015343
72002032534
oct464632617
9178281400
1080950671
114177048a
122313a553
1313a04009
14aa72d8b
1571905b6
hex4d3358f

80950671 has 20 divisors (see below), whose sum is σ = 122184832. Its totient is φ = 53405568.

The previous prime is 80950669. The next prime is 80950691. The reversal of 80950671 is 17605908.

80950671 is a `hidden beast` number, since 80 + 9 + 506 + 71 = 666.

It is not a de Polignac number, because 80950671 - 21 = 80950669 is a prime.

It is a super-2 number, since 2×809506712 = 13106022270700482, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80950691) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 2706 + ... + 13008.

Almost surely, 280950671 is an apocalyptic number.

80950671 is a gapful number since it is divisible by the number (81) formed by its first and last digit.

80950671 is a deficient number, since it is larger than the sum of its proper divisors (41234161).

80950671 is a wasteful number, since it uses less digits than its factorization.

80950671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10412 (or 10403 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 36.

The square root of 80950671 is about 8997.2590826318. The cubic root of 80950671 is about 432.5870202573.

The spelling of 80950671 in words is "eighty million, nine hundred fifty thousand, six hundred seventy-one".

Divisors: 1 3 9 27 81 97 291 873 2619 7857 10303 30909 92727 278181 834543 999391 2998173 8994519 26983557 80950671