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231014441400020 = 22559503521747053
BaseRepresentation
bin110100100001101100111101…
…101101111011011011010100
31010021221202122121210101002222
4310201230331231323123110
5220234420033444300040
62135154322544321512
766442146133442105
oct6441547555733324
91107852577711088
10231014441400020
11676767466aa933
1221ab0191013298
139bb9750880c75
1441092313903ac
151ba9338352bb5
hexd21b3db7b6d4

231014441400020 has 96 divisors (see below), whose sum is σ = 495283175735040. Its totient is φ = 90484850693120.

The previous prime is 231014441399921. The next prime is 231014441400077. The reversal of 231014441400020 is 20004144410132.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 308860814 + ... + 309607866.

It is an arithmetic number, because the mean of its divisors is an integer number (5159199747240).

Almost surely, 2231014441400020 is an apocalyptic number.

231014441400020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

231014441400020 is an abundant number, since it is smaller than the sum of its proper divisors (264268734335020).

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

231014441400020 is a wasteful number, since it uses less digits than its factorization.

231014441400020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 748145 (or 748143 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 26.

Adding to 231014441400020 its reverse (20004144410132), we get a palindrome (251018585810152).

The spelling of 231014441400020 in words is "two hundred thirty-one trillion, fourteen billion, four hundred forty-one million, four hundred thousand, twenty".

Divisors: 1 2 4 5 10 20 59 118 236 295 503 521 590 1006 1042 1180 2012 2084 2515 2605 5030 5210 10060 10420 29677 30739 59354 61478 118708 122956 148385 153695 262063 296770 307390 524126 593540 614780 747053 1048252 1310315 1494106 2620630 2988212 3735265 5241260 7470530 14941060 15461717 30923434 44076127 61846868 77308585 88152254 154617170 176304508 220380635 309234340 375767659 389214613 440761270 751535318 778429226 881522540 1503070636 1556858452 1878838295 1946073065 3757676590 3892146130 7515353180 7784292260 22170291881 22963662167 44340583762 45927324334 88681167524 91854648668 110851459405 114818310835 195774950339 221702918810 229636621670 391549900678 443405837620 459273243340 783099801356 978874751695 1957749503390 3915499006780 11550722070001 23101444140002 46202888280004 57753610350005 115507220700010 231014441400020