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131000304013400 = 23523124720962061
BaseRepresentation
bin11101110010010011100010…
…100101100001000001011000
3122011211111200102111012020102
4131302103202211201001120
5114132302110311412100
61142340413040314532
736410313440424113
oct3562234245410130
9564744612435212
10131000304013400
1138816a0a498968
12128388a0912a48
1358133778254c3
14244c63cb4157a
151022942862cd5
hex7724e2961058

131000304013400 has 48 divisors (see below), whose sum is σ = 304585468719840. Its totient is φ = 52398442140800.

The previous prime is 131000304013387. The next prime is 131000304013427. The reversal of 131000304013400 is 4310403000131.

It is a super-2 number, since 2×1310003040134002 (a number of 29 digits) contains 22 as substring.

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

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, 4231631 + ... + 16730430.

It is an arithmetic number, because the mean of its divisors is an integer number (6345530598330).

Almost surely, 2131000304013400 is an apocalyptic number.

131000304013400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131000304013400 is an abundant number, since it is smaller than the sum of its proper divisors (173585164706440).

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

131000304013400 is a wasteful number, since it uses less digits than its factorization.

131000304013400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20993324 (or 20993315 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 131000304013400 its reverse (4310403000131), we get a palindrome (135310707013531).

The spelling of 131000304013400 in words is "one hundred thirty-one trillion, three hundred four million, thirteen thousand, four hundred".

Divisors: 1 2 4 5 8 10 20 25 40 50 100 200 31247 62494 124988 156235 249976 312470 624940 781175 1249880 1562350 3124700 6249400 20962061 41924122 83848244 104810305 167696488 209620610 419241220 524051525 838482440 1048103050 2096206100 4192412200 655001520067 1310003040134 2620006080268 3275007600335 5240012160536 6550015200670 13100030401340 16375038001675 26200060802680 32750076003350 65500152006700 131000304013400