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631469254418704 = 241324832512
BaseRepresentation
bin1000111110010100010110010…
…0100110001010000100010000
310001210211212112001222201021201
42033211011210212022010100
51130231443013112344304
610115004545401000544
7250003101536312602
oct21745054446120420
93053755461881251
10631469254418704
11173229674828069
125a9a6b7b783154
13211473ab68bc00
14b1d13bc7d9172
154d00e7003e3a4
hex23e516498a110

631469254418704 has 45 divisors (see below), whose sum is σ = 1324827105511269. Its totient is φ = 291446745096000.

The previous prime is 631469254418677. The next prime is 631469254418719. The reversal of 631469254418704 is 407814452964136.

The square root of 631469254418704 is 25129052.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 93412611600400 + 538056642818304 = 9665020^2 + 23196048^2 .

It is a super-2 number, since 2×6314692544187042 (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1306469079 + ... + 1306952329.

It is a 3-persistent number, because k⋅631469254418704 is pandigital for 1 ≤ k ≤ 3, but not for k = 4.

Almost surely, 2631469254418704 is an apocalyptic number.

631469254418704 is the 25129052-nd square number.

It is an amenable number.

631469254418704 is an abundant number, since it is smaller than the sum of its proper divisors (693357851092565).

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

631469254418704 is an frugal number, since it uses more digits than its factorization.

631469254418704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 966536 (or 483266 counting only the distinct ones).

The product of its (nonzero) digits is 139345920, while the sum is 64.

The spelling of 631469254418704 in words is "six hundred thirty-one trillion, four hundred sixty-nine billion, two hundred fifty-four million, four hundred eighteen thousand, seven hundred four".

Divisors: 1 2 4 8 13 16 26 52 104 169 208 338 676 1352 2704 483251 966502 1933004 3866008 6282263 7732016 12564526 25129052 50258104 81669419 100516208 163338838 326677676 653355352 1306710704 233531529001 467063058002 934126116004 1868252232008 3035909877013 3736504464016 6071819754026 12143639508052 24287279016104 39466828401169 48574558032208 78933656802338 157867313604676 315734627209352 631469254418704