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131000042010400 = 25521249113109443
BaseRepresentation
bin11101110010010011010010…
…111110000011011100100000
3122011211111000011111001200121
4131302103102332003130200
5114132301041223313100
61142340331040530024
736410304106431013
oct3562232276033440
9564744004431617
10131000042010400
1138816895607162
1212838829020914
13581333546c644
14244c61601d37a
15102292985c51a
hex7724d2f83720

131000042010400 has 72 divisors (see below), whose sum is σ = 319829479696944. Its totient is φ = 52395817785600.

The previous prime is 131000042010367. The next prime is 131000042010403. The reversal of 131000042010400 is 4010240000131.

It is a super-2 number, since 2×1310000420104002 (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is not an unprimeable number, because it can be changed into a prime (131000042010403) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 3438079 + ... + 16547521.

It is an arithmetic number, because the mean of its divisors is an integer number (4442076106902).

Almost surely, 2131000042010400 is an apocalyptic number.

131000042010400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131000042010400 is an abundant number, since it is smaller than the sum of its proper divisors (188829437686544).

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

131000042010400 is a wasteful number, since it uses less digits than its factorization.

131000042010400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13121954 (or 13121941 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 131000042010400 its reverse (4010240000131), we get a palindrome (135010282010531).

The spelling of 131000042010400 in words is "one hundred thirty-one trillion, forty-two million, ten thousand, four hundred".

Divisors: 1 2 4 5 8 10 16 20 25 32 40 50 80 100 160 200 400 800 12491 24982 49964 62455 99928 124910 199856 249820 312275 399712 499640 624550 999280 1249100 1998560 2498200 4996400 9992800 13109443 26218886 52437772 65547215 104875544 131094430 209751088 262188860 327736075 419502176 524377720 655472150 1048755440 1310944300 2097510880 2621888600 5243777200 10487554400 163750052513 327500105026 655000210052 818750262565 1310000420104 1637500525130 2620000840208 3275001050260 4093751312825 5240001680416 6550002100520 8187502625650 13100004201040 16375005251300 26200008402080 32750010502600 65500021005200 131000042010400