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231514005250220 = 2257111013148404511
BaseRepresentation
bin110100101000111110001110…
…000010110010000010101100
31010100201112010002022101022012
4310220332032002302002230
5220321111140321001340
62140220022111340352
766523222605215630
oct6450761602620254
91110645102271265
10231514005250220
11678495a1451550
1221b70b6bb216b8
139c248a5541224
1441254a26bcdc0
151bb7325a31565
hexd28f8e0b20ac

231514005250220 has 96 divisors (see below), whose sum is σ = 606744130277376. Its totient is φ = 72088974777600.

The previous prime is 231514005250141. The next prime is 231514005250273. The reversal of 231514005250220 is 22052500415132.

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, 72642236 + ... + 75762275.

It is an arithmetic number, because the mean of its divisors is an integer number (6320251357056).

Almost surely, 2231514005250220 is an apocalyptic number.

231514005250220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

231514005250220 is an abundant number, since it is smaller than the sum of its proper divisors (375230125027156).

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

231514005250220 is a wasteful number, since it uses less digits than its factorization.

231514005250220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148405551 (or 148405549 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 32.

Adding to 231514005250220 its reverse (22052500415132), we get a palindrome (253566505665352).

The spelling of 231514005250220 in words is "two hundred thirty-one trillion, five hundred fourteen billion, five million, two hundred fifty thousand, two hundred twenty".

Divisors: 1 2 4 5 7 10 11 14 20 22 28 35 44 55 70 77 110 140 154 220 308 385 770 1013 1540 2026 4052 5065 7091 10130 11143 14182 20260 22286 28364 35455 44572 55715 70910 78001 111430 141820 156002 222860 312004 390005 780010 1560020 148404511 296809022 593618044 742022555 1038831577 1484045110 1632449621 2077663154 2968090220 3264899242 4155326308 5194157885 6529798484 8162248105 10388315770 11427147347 16324496210 20776631540 22854294694 32648992420 45708589388 57135736735 114271473470 150333769643 228542946940 300667539286 601335078572 751668848215 1052336387501 1503337696430 1653671466073 2104672775002 3006675392860 3307342932146 4209345550004 5261681937505 6614685864292 8268357330365 10523363875010 11575700262511 16536714660730 21046727750020 23151400525022 33073429321460 46302801050044 57878501312555 115757002625110 231514005250220