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631230704 = 241329227461
BaseRepresentation
bin100101100111111…
…101000011110000
31121222202211201222
4211213331003300
52243043340304
6142345244212
721433241516
oct4547750360
91558684658
10631230704
112a4349a75
12157493668
13a0a11ac0
145db964b6
153a63b4be
hex259fd0f0

631230704 has 80 divisors (see below), whose sum is σ = 1371474720. Its totient is φ = 279444480.

The previous prime is 631230671. The next prime is 631230707. The reversal of 631230704 is 407032136.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (631230707) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1369034 + ... + 1369494.

It is an arithmetic number, because the mean of its divisors is an integer number (17143434).

Almost surely, 2631230704 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 631230704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (685737360).

631230704 is an abundant number, since it is smaller than the sum of its proper divisors (740244016).

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

631230704 is a wasteful number, since it uses less digits than its factorization.

631230704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 738 (or 732 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 26.

The square root of 631230704 is about 25124.3050451152. The cubic root of 631230704 is about 857.8197450441.

The spelling of 631230704 in words is "six hundred thirty-one million, two hundred thirty thousand, seven hundred four".

Divisors: 1 2 4 8 13 16 26 29 52 58 104 116 208 227 232 377 454 461 464 754 908 922 1508 1816 1844 2951 3016 3632 3688 5902 5993 6032 6583 7376 11804 11986 13166 13369 23608 23972 26332 26738 47216 47944 52664 53476 85579 95888 104647 105328 106952 171158 173797 209294 213904 342316 347594 418588 684632 695188 837176 1360411 1369264 1390376 1674352 2720822 2780752 3034763 5441644 6069526 10883288 12139052 21766576 24278104 39451919 48556208 78903838 157807676 315615352 631230704