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312443314100 = 225223021135721
BaseRepresentation
bin1001000101111110001…
…00101001111110110100
31002212110201012212201022
410202333010221332310
520104340442022400
6355311240320312
731400431231121
oct4427704517664
91085421185638
10312443314100
11110563118365
1250678773098
1323603a8bb68
141119d99b748
1581d9cebb85
hex48bf129fb4

312443314100 has 36 divisors (see below), whose sum is σ = 678036438828. Its totient is φ = 124970976000.

The previous prime is 312443314097. The next prime is 312443314129. The reversal of 312443314100 is 1413344213.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 142867368484 + 169575945616 = 377978^2 + 411796^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 312443314100.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2234240 + ... + 2369960.

It is an arithmetic number, because the mean of its divisors is an integer number (18834345523).

Almost surely, 2312443314100 is an apocalyptic number.

It is an amenable number.

312443314100 is an abundant number, since it is smaller than the sum of its proper divisors (365593124728).

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

312443314100 is a wasteful number, since it uses less digits than its factorization.

312443314100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158756 (or 158749 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 312443314100 its reverse (1413344213), we get a palindrome (313856658313).

The spelling of 312443314100 in words is "three hundred twelve billion, four hundred forty-three million, three hundred fourteen thousand, one hundred".

Divisors: 1 2 4 5 10 20 25 50 100 23021 46042 92084 115105 135721 230210 271442 460420 542884 575525 678605 1151050 1357210 2302100 2714420 3393025 6786050 13572100 3124433141 6248866282 12497732564 15622165705 31244331410 62488662820 78110828525 156221657050 312443314100