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63993080 = 2351599827
BaseRepresentation
bin1111010000011…
…1010011111000
311110102012000002
43310013103320
5112340234310
610203332132
71404634514
oct364072370
9143365002
1063993080
1133138a48
1219521048
1310347638
1486db144
155940da5
hex3d074f8

63993080 has 16 divisors (see below), whose sum is σ = 143984520. Its totient is φ = 25597216.

The previous prime is 63993077. The next prime is 63993089. The reversal of 63993080 is 8039936.

It is a happy number.

It is a super-2 number, since 2×639930802 = 8190228575772800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63993089) 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, 799874 + ... + 799953.

Almost surely, 263993080 is an apocalyptic number.

It is an amenable number.

63993080 is an abundant number, since it is smaller than the sum of its proper divisors (79991440).

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

63993080 is a wasteful number, since it uses less digits than its factorization.

63993080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1599838 (or 1599834 counting only the distinct ones).

The product of its (nonzero) digits is 34992, while the sum is 38.

The square root of 63993080 is about 7999.5674883084. The cubic root of 63993080 is about 399.9855828137.

The spelling of 63993080 in words is "sixty-three million, nine hundred ninety-three thousand, eighty".

Divisors: 1 2 4 5 8 10 20 40 1599827 3199654 6399308 7999135 12798616 15998270 31996540 63993080