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131490178742 = 2136537744739
BaseRepresentation
bin111101001110101101…
…1001110011010110110
3110120101202222011120002
41322131123032122312
54123242441204432
6140223350511302
712333310035536
oct1723533163266
9416352864502
10131490178742
115084586150a
1221597965532
13c5268386c0
1465153734c6
153648abce62
hex1e9d6ce6b6

131490178742 has 16 divisors (see below), whose sum is σ = 212732518320. Its totient is φ = 60594830112.

The previous prime is 131490178717. The next prime is 131490178777. The reversal of 131490178742 is 247871094131.

It is a happy number.

131490178742 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3855392 + ... + 3889347.

It is an arithmetic number, because the mean of its divisors is an integer number (13295782395).

Almost surely, 2131490178742 is an apocalyptic number.

131490178742 is a deficient number, since it is larger than the sum of its proper divisors (81242339578).

131490178742 is a wasteful number, since it uses less digits than its factorization.

131490178742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7745407.

The product of its (nonzero) digits is 338688, while the sum is 47.

The spelling of 131490178742 in words is "one hundred thirty-one billion, four hundred ninety million, one hundred seventy-eight thousand, seven hundred forty-two".

Divisors: 1 2 13 26 653 1306 8489 16978 7744739 15489478 100681607 201363214 5057314567 10114629134 65745089371 131490178742