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131237581003 = 1516197140249
BaseRepresentation
bin111101000111001011…
…1101001000011001011
3110112202011122212121021
41322032113221003023
54122233310043003
6140142324453311
712324122014144
oct1721627510313
9415664585537
10131237581003
1150726214051
122152724a237
13c4b63c6799
1464cd9bcacb
1536318242bd
hex1e8e5e90cb

131237581003 has 8 divisors (see below), whose sum is σ = 132128964000. Its totient is φ = 130346491200.

The previous prime is 131237580953. The next prime is 131237581021. The reversal of 131237581003 is 300185732131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 131237581003 - 29 = 131237580491 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 131237581003.

It is not an unprimeable number, because it can be changed into a prime (131237581303) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 865623 + ... + 1005871.

It is an arithmetic number, because the mean of its divisors is an integer number (16516120500).

Almost surely, 2131237581003 is an apocalyptic number.

131237581003 is a deficient number, since it is larger than the sum of its proper divisors (891382997).

131237581003 is a wasteful number, since it uses less digits than its factorization.

131237581003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146597.

The product of its (nonzero) digits is 15120, while the sum is 34.

The spelling of 131237581003 in words is "one hundred thirty-one billion, two hundred thirty-seven million, five hundred eighty-one thousand, three".

Divisors: 1 151 6197 140249 935747 21177599 869123053 131237581003