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131202313442 = 2193452692459
BaseRepresentation
bin111101000110001000…
…1000110110011100010
3110112122201022002121022
41322030101012303202
54122200243012232
6140135024525442
712323213156234
oct1721421066342
9415581262538
10131202313442
1150708316002
1221517480882
13c4abcc8cc5
1464c903c254
15362d6a9812
hex1e8c446ce2

131202313442 has 8 divisors (see below), whose sum is σ = 207161547600. Its totient is φ = 62148464244.

The previous prime is 131202313399. The next prime is 131202313457. The reversal of 131202313442 is 244313202131.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1726346192 + ... + 1726346267.

It is an arithmetic number, because the mean of its divisors is an integer number (25895193450).

Almost surely, 2131202313442 is an apocalyptic number.

131202313442 is a deficient number, since it is larger than the sum of its proper divisors (75959234158).

131202313442 is a wasteful number, since it uses less digits than its factorization.

131202313442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3452692480.

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 131202313442 its reverse (244313202131), we get a palindrome (375515515573).

The spelling of 131202313442 in words is "one hundred thirty-one billion, two hundred two million, three hundred thirteen thousand, four hundred forty-two".

Divisors: 1 2 19 38 3452692459 6905384918 65601156721 131202313442