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131540102197 = 729647980799
BaseRepresentation
bin111101010000001100…
…1101010110000110101
3110120112020220112122221
41322200121222300311
54123343231232242
6140232332522341
712334454264140
oct1724031526065
9416466815587
10131540102197
1150870a5a769
12215b06203b1
13c533c97cca
14651bc4b057
15364d180167
hex1ea066ac35

131540102197 has 8 divisors (see below), whose sum is σ = 155515392000. Its totient is φ = 108860774064.

The previous prime is 131540102179. The next prime is 131540102203. The reversal of 131540102197 is 791201045131.

It is a happy number.

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

It is not a de Polignac number, because 131540102197 - 215 = 131540069429 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131540102797) 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, 323990197 + ... + 323990602.

It is an arithmetic number, because the mean of its divisors is an integer number (19439424000).

Almost surely, 2131540102197 is an apocalyptic number.

It is an amenable number.

131540102197 is a deficient number, since it is larger than the sum of its proper divisors (23975289803).

131540102197 is an equidigital number, since it uses as much as digits as its factorization.

131540102197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 647980835.

The product of its (nonzero) digits is 7560, while the sum is 34.

The spelling of 131540102197 in words is "one hundred thirty-one billion, five hundred forty million, one hundred two thousand, one hundred ninety-seven".

Divisors: 1 7 29 203 647980799 4535865593 18791443171 131540102197