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1311630400100 = 225223570274087
BaseRepresentation
bin10011000101100011010…
…000111001101001100100
311122101112202222222211102
4103011203100321221210
5132442204340300400
62442315451255232
7163522265306366
oct23054320715144
94571482888742
101311630400100
114662941919a9
1219225244a518
13968bc8027a7
14476aa076d36
15241b9ed99d5
hex13163439a64

1311630400100 has 36 divisors (see below), whose sum is σ = 2969987450304. Its totient is φ = 501841195680.

The previous prime is 1311630400099. The next prime is 1311630400117. The reversal of 1311630400100 is 10040361131.

It is a Harshad number since it is a multiple of its sum of digits (20).

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, 285134744 + ... + 285139343.

Almost surely, 21311630400100 is an apocalyptic number.

1311630400100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1311630400100 is an abundant number, since it is smaller than the sum of its proper divisors (1658357050204).

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

1311630400100 is a wasteful number, since it uses less digits than its factorization.

1311630400100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 570274124 (or 570274117 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 1311630400100 its reverse (10040361131), we get a palindrome (1321670761231).

The spelling of 1311630400100 in words is "one trillion, three hundred eleven billion, six hundred thirty million, four hundred thousand, one hundred".

Divisors: 1 2 4 5 10 20 23 25 46 50 92 100 115 230 460 575 1150 2300 570274087 1140548174 2281096348 2851370435 5702740870 11405481740 13116304001 14256852175 26232608002 28513704350 52465216004 57027408700 65581520005 131163040010 262326080020 327907600025 655815200050 1311630400100