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630412984 = 2378801623
BaseRepresentation
bin100101100100110…
…101011010111000
31121221020022001001
4211210311122320
52242341203414
6142315534344
721423264505
oct4544653270
91557208031
10630412984
112a3940673
1215715a3b4
13a07b6846
145da224ac
153a529074
hex259356b8

630412984 has 8 divisors (see below), whose sum is σ = 1182024360. Its totient is φ = 315206488.

The previous prime is 630412967. The next prime is 630412997. The reversal of 630412984 is 489214036.

630412984 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (8).

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39400804 + ... + 39400819.

It is an arithmetic number, because the mean of its divisors is an integer number (147753045).

Almost surely, 2630412984 is an apocalyptic number.

It is an amenable number.

630412984 is a deficient number, since it is larger than the sum of its proper divisors (551611376).

630412984 is a wasteful number, since it uses less digits than its factorization.

630412984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78801629 (or 78801625 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 37.

The square root of 630412984 is about 25108.0262864288. The cubic root of 630412984 is about 857.4491676554.

The spelling of 630412984 in words is "six hundred thirty million, four hundred twelve thousand, nine hundred eighty-four".

Divisors: 1 2 4 8 78801623 157603246 315206492 630412984