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507642663 = 31115383111
BaseRepresentation
bin11110010000100…
…000001100100111
31022101012220211010
4132100200030213
52014424031123
6122212313303
715402614523
oct3620401447
91271186733
10507642663
112406074a0
12122012833
138122c998
144b5c4d83
152e877993
hex1e420327

507642663 has 8 divisors (see below), whose sum is σ = 738389376. Its totient is φ = 307662200.

The previous prime is 507642659. The next prime is 507642673. The reversal of 507642663 is 366246705.

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

It is a cyclic number.

It is not a de Polignac number, because 507642663 - 22 = 507642659 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (507642643) 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, 7691523 + ... + 7691588.

It is an arithmetic number, because the mean of its divisors is an integer number (92298672).

Almost surely, 2507642663 is an apocalyptic number.

507642663 is a deficient number, since it is larger than the sum of its proper divisors (230746713).

507642663 is a wasteful number, since it uses less digits than its factorization.

507642663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15383125.

The product of its (nonzero) digits is 181440, while the sum is 39.

The square root of 507642663 is about 22530.9268118291. The cubic root of 507642663 is about 797.7240850497.

The spelling of 507642663 in words is "five hundred seven million, six hundred forty-two thousand, six hundred sixty-three".

Divisors: 1 3 11 33 15383111 46149333 169214221 507642663