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130891543453 = 1124013269561
BaseRepresentation
bin111100111100110111…
…1100111001110011101
3110111212001112100022201
41321321233213032131
54121031213342303
6140044124011501
712312420522256
oct1717157471635
9414761470281
10130891543453
1150568955a00
122144b390b91
13c45c7ca038
146499a63b2d
15361126e81d
hex1e79be739d

130891543453 has 12 divisors (see below), whose sum is σ = 143908908444. Its totient is φ = 118962219200.

The previous prime is 130891543421. The next prime is 130891543463. The reversal of 130891543453 is 354345198031.

It can be written as a sum of positive squares in 2 ways, for example, as 50835368089 + 80056175364 = 225467^2 + 282942^2 .

It is not a de Polignac number, because 130891543453 - 25 = 130891543421 is a prime.

It is a super-2 number, since 2×1308915434532 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130891543403) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 350793 + ... + 620353.

It is an arithmetic number, because the mean of its divisors is an integer number (11992409037).

Almost surely, 2130891543453 is an apocalyptic number.

It is an amenable number.

130891543453 is a deficient number, since it is larger than the sum of its proper divisors (13017364991).

130891543453 is a wasteful number, since it uses less digits than its factorization.

130891543453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 273596 (or 273585 counting only the distinct ones).

The product of its (nonzero) digits is 777600, while the sum is 46.

The spelling of 130891543453 in words is "one hundred thirty billion, eight hundred ninety-one million, five hundred forty-three thousand, four hundred fifty-three".

Divisors: 1 11 121 4013 44143 269561 485573 2965171 32616881 1081748293 11899231223 130891543453