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631107344 = 247191571889
BaseRepresentation
bin100101100111011…
…110111100010000
31121222112120112002
4211213132330100
52243030413334
6142342453132
721432216050
oct4547367420
91558476462
10631107344
112a427531a
121574341a8
13a099a8ca
145db63560
153a614b7e
hex259def10

631107344 has 80 divisors (see below), whose sum is σ = 1481155200. Its totient is φ = 254472192.

The previous prime is 631107343. The next prime is 631107353. The reversal of 631107344 is 443701136.

It is not an unprimeable number, because it can be changed into a prime (631107343) 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, 333152 + ... + 335040.

It is an arithmetic number, because the mean of its divisors is an integer number (18514440).

Almost surely, 2631107344 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 631107344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (740577600).

631107344 is an abundant number, since it is smaller than the sum of its proper divisors (850047856).

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

631107344 is a wasteful number, since it uses less digits than its factorization.

631107344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2080 (or 2074 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 29.

The square root of 631107344 is about 25121.8499318820. The cubic root of 631107344 is about 857.7638608075.

The spelling of 631107344 in words is "six hundred thirty-one million, one hundred seven thousand, three hundred forty-four".

Divisors: 1 2 4 7 8 14 16 19 28 38 56 76 112 133 152 157 266 304 314 532 628 1064 1099 1256 1889 2128 2198 2512 2983 3778 4396 5966 7556 8792 11932 13223 15112 17584 20881 23864 26446 30224 35891 41762 47728 52892 71782 83524 105784 143564 167048 211568 251237 287128 296573 334096 502474 574256 593146 1004948 1186292 2009896 2076011 2372584 4019792 4152022 4745168 5634887 8304044 11269774 16608088 22539548 33216176 39444209 45079096 78888418 90158192 157776836 315553672 631107344