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312492180100 = 2252559012
BaseRepresentation
bin1001000110000011111…
…11000100001010000100
31002212121010011112021011
410203001333010022010
520104440444230400
6355320143532004
731401563463442
oct4430177041204
91085533145234
10312492180100
11110588764091
1250690bba004
1323610c3b059
14111a627bb92
1581de2508ba
hex48c1fc4284

312492180100 has 27 divisors (see below), whose sum is σ = 678120161551. Its totient is φ = 124994636000.

The previous prime is 312492180097. The next prime is 312492180139. The reversal of 312492180100 is 1081294213.

The square root of 312492180100 is 559010.

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

It can be written as a sum of positive squares in 4 ways, for example, as 52685857156 + 259806322944 = 229534^2 + 509712^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 5562150 + ... + 5618050.

Almost surely, 2312492180100 is an apocalyptic number.

312492180100 is the 559010-th square number.

It is an amenable number.

312492180100 is an abundant number, since it is smaller than the sum of its proper divisors (365627981451).

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

312492180100 is an frugal number, since it uses more digits than its factorization.

312492180100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111816 (or 55908 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 31.

The spelling of 312492180100 in words is "three hundred twelve billion, four hundred ninety-two million, one hundred eighty thousand, one hundred".

Divisors: 1 2 4 5 10 20 25 50 100 55901 111802 223604 279505 559010 1118020 1397525 2795050 5590100 3124921801 6249843602 12499687204 15624609005 31249218010 62498436020 78123045025 156246090050 312492180100