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631230116 = 221147305237
BaseRepresentation
bin100101100111111…
…100111010100100
31121222202210221012
4211213330322210
52243043330431
6142345241352
721433240016
oct4547747244
91558683835
10631230116
112a4349590
12157493258
13a0a1175a
145db961b6
153a63b22b
hex259fcea4

631230116 has 24 divisors (see below), whose sum is σ = 1230719616. Its totient is φ = 280817120.

The previous prime is 631230113. The next prime is 631230133. The reversal of 631230116 is 611032136.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 631230091 and 631230100.

It is not an unprimeable number, because it can be changed into a prime (631230113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 150551 + ... + 154686.

It is an arithmetic number, because the mean of its divisors is an integer number (51279984).

Almost surely, 2631230116 is an apocalyptic number.

It is an amenable number.

631230116 is a deficient number, since it is larger than the sum of its proper divisors (599489500).

631230116 is a wasteful number, since it uses less digits than its factorization.

631230116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305299 (or 305297 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 631230116 is about 25124.2933432962. The cubic root of 631230116 is about 857.8194786870.

The spelling of 631230116 in words is "six hundred thirty-one million, two hundred thirty thousand, one hundred sixteen".

Divisors: 1 2 4 11 22 44 47 94 188 517 1034 2068 305237 610474 1220948 3357607 6715214 13430428 14346139 28692278 57384556 157807529 315615058 631230116