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635683068 = 223217657863
BaseRepresentation
bin100101111000111…
…100000011111100
31122022011001020100
4211320330003330
52300213324233
6143024521100
721516134256
oct4570740374
91568131210
10635683068
112a6910109
12158a80190
13a1910537
14605d4cd6
153ac1a813
hex25e3c0fc

635683068 has 18 divisors (see below), whose sum is σ = 1606865624. Its totient is φ = 211894344.

The previous prime is 635683063. The next prime is 635683079. The reversal of 635683068 is 860386536.

635683068 is a `hidden beast` number, since 635 + 6 + 8 + 3 + 0 + 6 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (635683063) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8828896 + ... + 8828967.

Almost surely, 2635683068 is an apocalyptic number.

It is an amenable number.

635683068 is an abundant number, since it is smaller than the sum of its proper divisors (971182556).

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

635683068 is a wasteful number, since it uses less digits than its factorization.

635683068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17657873 (or 17657868 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 45.

The square root of 635683068 is about 25212.7560572025. The cubic root of 635683068 is about 859.8318888996.

The spelling of 635683068 in words is "six hundred thirty-five million, six hundred eighty-three thousand, sixty-eight".

Divisors: 1 2 3 4 6 9 12 18 36 17657863 35315726 52973589 70631452 105947178 158920767 211894356 317841534 635683068