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631240325614401 = 31231170928872357
BaseRepresentation
bin1000111110000111000001011…
…1011000000100101101000001
310001210000222121122001111122220
42033201300113120010231001
51130214220141324130101
610114311445142121253
7246650415503504346
oct21741602730045501
93053028548044586
10631240325614401
11173150578454038
125a96a72ba20229
132112b926bb1969
14b1c42a26707cd
154cea022037636
hex23e1c17604b41

631240325614401 has 8 divisors (see below), whose sum is σ = 842337482980224. Its totient is φ = 420485025995760.

The previous prime is 631240325614399. The next prime is 631240325614411. The reversal of 631240325614401 is 104416523042136.

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

It is not a de Polignac number, because 631240325614401 - 21 = 631240325614399 is a prime.

It is not an unprimeable number, because it can be changed into a prime (631240325614411) 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, 85464432486 + ... + 85464439871.

It is an arithmetic number, because the mean of its divisors is an integer number (105292185372528).

Almost surely, 2631240325614401 is an apocalyptic number.

It is an amenable number.

631240325614401 is a deficient number, since it is larger than the sum of its proper divisors (211097157365823).

631240325614401 is a wasteful number, since it uses less digits than its factorization.

631240325614401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170928873591.

The product of its (nonzero) digits is 414720, while the sum is 42.

Adding to 631240325614401 its reverse (104416523042136), we get a palindrome (735656848656537).

The spelling of 631240325614401 in words is "six hundred thirty-one trillion, two hundred forty billion, three hundred twenty-five million, six hundred fourteen thousand, four hundred one".

Divisors: 1 3 1231 3693 170928872357 512786617071 210413441871467 631240325614401