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231545355225350 = 25217346391163463
BaseRepresentation
bin110100101001011011011010…
…101001011100100100000110
31010100211112000220211010102012
4310221123122221130210012
5220322114341414202400
62140242245010214222
766525412516500215
oct6451333251344406
91110745026733365
10231545355225350
1167860919716901
1221b7705ab84372
139c278304bb27a
144126bd813707c
151bb805ce1cd35
hexd296daa5c906

231545355225350 has 96 divisors (see below), whose sum is σ = 434582723211264. Its totient is φ = 91781587497600.

The previous prime is 231545355225293. The next prime is 231545355225389. The reversal of 231545355225350 is 53522553545132.

It is a super-2 number, since 2×2315453552253502 (a number of 30 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (50).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3648477719 + ... + 3648541181.

It is an arithmetic number, because the mean of its divisors is an integer number (4526903366784).

Almost surely, 2231545355225350 is an apocalyptic number.

231545355225350 is a deficient number, since it is larger than the sum of its proper divisors (203037367985914).

231545355225350 is a wasteful number, since it uses less digits than its factorization.

231545355225350 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65022 (or 65017 counting only the distinct ones).

The product of its (nonzero) digits is 13500000, while the sum is 50.

The spelling of 231545355225350 in words is "two hundred thirty-one trillion, five hundred forty-five billion, three hundred fifty-five million, two hundred twenty-five thousand, three hundred fifty".

Divisors: 1 2 5 10 25 50 173 346 463 865 911 926 1730 1822 2315 4325 4555 4630 8650 9110 11575 22775 23150 45550 63463 80099 126926 157603 160198 315206 317315 400495 421793 634630 788015 800990 843586 1576030 1586575 2002475 2108965 3173150 3940075 4004950 4217930 7880150 10544825 10979099 21089650 21958198 29383369 54895495 57814793 58766738 72970189 109790990 115629586 145940378 146916845 274477475 289073965 293833690 364850945 548954950 578147930 729701890 734584225 1445369825 1469168450 1824254725 2890739650 3648509450 5083322837 10001959189 10166645674 20003918378 25416614185 26768249159 50009795945 50833228370 53536498318 100019591890 127083070925 133841245795 250048979725 254166141850 267682491590 500097959450 669206228975 1338412457950 4630907104507 9261814209014 23154535522535 46309071045070 115772677612675 231545355225350