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630547016 = 231183131659
BaseRepresentation
bin100101100101010…
…110001001001000
31121221111002220012
4211211112021020
52242410001031
6142322451052
721424363331
oct4545261110
91557432805
10630547016
112a3a22340
12157203a88
13a0832858
145da59288
153a553b2b
hex25956248

630547016 has 64 divisors (see below), whose sum is σ = 1317254400. Its totient is φ = 280571200.

The previous prime is 630546979. The next prime is 630547031. The reversal of 630547016 is 610745036.

It is an alternating number because its digits alternate between even and odd.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 956495 + ... + 957153.

It is an arithmetic number, because the mean of its divisors is an integer number (20582100).

Almost surely, 2630547016 is an apocalyptic number.

630547016 is the 14498-th octagonal number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 630547016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (658627200).

630547016 is an abundant number, since it is smaller than the sum of its proper divisors (686707384).

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

630547016 is a wasteful number, since it uses less digits than its factorization.

630547016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 890 (or 886 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 32.

The square root of 630547016 is about 25110.6952512271. The cubic root of 630547016 is about 857.5099307245.

The spelling of 630547016 in words is "six hundred thirty million, five hundred forty-seven thousand, sixteen".

Divisors: 1 2 4 8 11 22 44 83 88 131 166 262 332 524 659 664 913 1048 1318 1441 1826 2636 2882 3652 5272 5764 7249 7304 10873 11528 14498 21746 28996 43492 54697 57992 86329 86984 109394 119603 172658 218788 239206 345316 437576 478412 601667 690632 949619 956824 1203334 1899238 2406668 3798476 4813336 7165307 7596952 14330614 28661228 57322456 78818377 157636754 315273508 630547016