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131065240042 = 21123076592677
BaseRepresentation
bin111101000010000011…
…0001101100111101010
3110112022011101001020201
41322010012031213222
54121410200140132
6140113250542414
712316630105312
oct1720406154752
9415264331221
10131065240042
1150647a02800
1221499597a0a
13c4897a4a99
1464b4b5a442
1536216302e7
hex1e8418d9ea

131065240042 has 48 divisors (see below), whose sum is σ = 217209152160. Its totient is φ = 59268797280.

The previous prime is 131065240003. The next prime is 131065240043. The reversal of 131065240042 is 240042560131.

It is not an unprimeable number, because it can be changed into a prime (131065240043) 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, 48958408 + ... + 48961084.

It is an arithmetic number, because the mean of its divisors is an integer number (4525190670).

Almost surely, 2131065240042 is an apocalyptic number.

131065240042 is a deficient number, since it is larger than the sum of its proper divisors (86143912118).

131065240042 is a wasteful number, since it uses less digits than its factorization.

131065240042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3667 (or 3656 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 28.

The spelling of 131065240042 in words is "one hundred thirty-one billion, sixty-five million, two hundred forty thousand, forty-two".

Divisors: 1 2 11 22 121 242 307 614 659 1318 2677 3377 5354 6754 7249 14498 29447 37147 58894 74294 79739 159478 202313 323917 404626 647834 821839 1643678 1764143 2225443 3528286 4450886 9040229 18080458 19405573 24479873 38811146 48959746 99442519 198885038 213461303 426922606 541591901 1083183802 5957510911 11915021822 65532620021 131065240042