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131002232207 = 72112411008493
BaseRepresentation
bin111101000000001010…
…1110110110110001111
3110112010202210220202012
41322000111312312033
54121243032412312
6140103120251435
712315233413100
oct1720025666617
9415122726665
10131002232207
1150615388010
1221480470b7b
13c479713a42
1464aa6383a7
15361ad36322
hex1e80576d8f

131002232207 has 24 divisors (see below), whose sum is σ = 166933994832. Its totient is φ = 101655993600.

The previous prime is 131002232191. The next prime is 131002232209. The reversal of 131002232207 is 702232200131.

It is not a de Polignac number, because 131002232207 - 24 = 131002232191 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131002232209) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 374348 + ... + 634145.

It is an arithmetic number, because the mean of its divisors is an integer number (6955583118).

Almost surely, 2131002232207 is an apocalyptic number.

131002232207 is a deficient number, since it is larger than the sum of its proper divisors (35931762625).

131002232207 is a wasteful number, since it uses less digits than its factorization.

131002232207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1008759 (or 1008752 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 23.

Adding to 131002232207 its reverse (702232200131), we get a palindrome (833234432338).

The spelling of 131002232207 in words is "one hundred thirty-one billion, two million, two hundred thirty-two thousand, two hundred seven".

Divisors: 1 7 11 49 77 241 539 1687 2651 11809 18557 129899 1008493 7059451 11093423 49416157 77653961 243046813 543577727 1701327691 2673514943 11909293837 18714604601 131002232207