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131494166934 = 23137330775223
BaseRepresentation
bin111101001110110101…
…0011100000110010110
3110120102001110210022220
41322131222130012112
54123300001320214
6140224012203210
712333355656114
oct1723552340626
9416361423286
10131494166934
1150848035939
1221599169506
13c527603a90
146515ad0ab4
1536491099a9
hex1e9da9c196

131494166934 has 64 divisors (see below), whose sum is σ = 288036908544. Its totient is φ = 39774986496.

The previous prime is 131494166927. The next prime is 131494166963. The reversal of 131494166934 is 439661494131.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1710447 + ... + 1785669.

It is an arithmetic number, because the mean of its divisors is an integer number (4500576696).

Almost surely, 2131494166934 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 131494166934, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (144018454272).

131494166934 is an abundant number, since it is smaller than the sum of its proper divisors (156542741610).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131494166934 is a wasteful number, since it uses less digits than its factorization.

131494166934 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75621.

The product of its digits is 1679616, while the sum is 51.

The spelling of 131494166934 in words is "one hundred thirty-one billion, four hundred ninety-four million, one hundred sixty-six thousand, nine hundred thirty-four".

Divisors: 1 2 3 6 13 26 39 73 78 146 219 307 438 614 921 949 1842 1898 2847 3991 5694 7982 11973 22411 23946 44822 67233 75223 134466 150446 225669 291343 451338 582686 874029 977899 1748058 1955798 2933697 5491279 5867394 10982558 16473837 23093461 32947674 46186922 69280383 71386627 138560766 142773254 214159881 300214993 428319762 600429986 900644979 1685822653 1801289958 3371645306 5057467959 10114935918 21915694489 43831388978 65747083467 131494166934