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630431615145 = 3542028774343
BaseRepresentation
bin10010010110010001010…
…01110000100010101001
32020021020212022021112110
421023020221300202221
540312110443141040
61201341041232533
763355453212033
oct11131051604251
92207225267473
10630431615145
11223401236462
12a2222332749
13475ac583087
1422727b62c53
15115eb802980
hex92c8a708a9

630431615145 has 8 divisors (see below), whose sum is σ = 1008690584256. Its totient is φ = 336230194736.

The previous prime is 630431615141. The next prime is 630431615173. The reversal of 630431615145 is 541516134036.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 630431615145 - 22 = 630431615141 is a prime.

It is not an unprimeable number, because it can be changed into a prime (630431615141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21014387157 + ... + 21014387186.

It is an arithmetic number, because the mean of its divisors is an integer number (126086323032).

Almost surely, 2630431615145 is an apocalyptic number.

It is an amenable number.

630431615145 is a deficient number, since it is larger than the sum of its proper divisors (378258969111).

630431615145 is a wasteful number, since it uses less digits than its factorization.

630431615145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42028774351.

The product of its (nonzero) digits is 129600, while the sum is 39.

The spelling of 630431615145 in words is "six hundred thirty billion, four hundred thirty-one million, six hundred fifteen thousand, one hundred forty-five".

Divisors: 1 3 5 15 42028774343 126086323029 210143871715 630431615145