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80245986 = 2313374331
BaseRepresentation
bin1001100100001…
…11010011100010
312120222220210120
410302013103202
5131020332421
611543541110
71663036212
oct462072342
9176886716
1080245986
1141329aa7
1222a5a796
1313818342
14a92c242
1570a18c6
hex4c874e2

80245986 has 8 divisors (see below), whose sum is σ = 160491984. Its totient is φ = 26748660.

The previous prime is 80245981. The next prime is 80245993. The reversal of 80245986 is 68954208.

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

80245986 is an admirable number.

It is a super-2 number, since 2×802459862 = 12878836538224392, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (80245981) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6687160 + ... + 6687171.

It is an arithmetic number, because the mean of its divisors is an integer number (20061498).

Almost surely, 280245986 is an apocalyptic number.

80245986 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

80245986 is a wasteful number, since it uses less digits than its factorization.

80245986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13374336.

The product of its (nonzero) digits is 138240, while the sum is 42.

The square root of 80245986 is about 8958.0123911502. The cubic root of 80245986 is about 431.3281201053.

The spelling of 80245986 in words is "eighty million, two hundred forty-five thousand, nine hundred eighty-six".

Divisors: 1 2 3 6 13374331 26748662 40122993 80245986