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131034130120 = 235291093103349
BaseRepresentation
bin111101000001000111…
…1100010011011001000
3110112012222211111110101
41322002033202123020
54121324214130440
6140110220055144
712316101504655
oct1720217423310
9415188744411
10131034130120
1150631394423
122148b0944b4
13c48320184a
1464b097cc2c
15361da3769a
hex1e823e26c8

131034130120 has 64 divisors (see below), whose sum is σ = 305275230000. Its totient is φ = 50559495168.

The previous prime is 131034130109. The next prime is 131034130121. The reversal of 131034130120 is 21031430131.

It can be written as a sum of positive squares in 8 ways, for example, as 73919821924 + 57114308196 = 271882^2 + 238986^2 .

It is not an unprimeable number, because it can be changed into a prime (131034130121) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 1216206 + ... + 1319554.

Almost surely, 2131034130120 is an apocalyptic number.

131034130120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 131034130120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (152637615000).

131034130120 is an abundant number, since it is smaller than the sum of its proper divisors (174241099880).

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

131034130120 is a wasteful number, since it uses less digits than its factorization.

131034130120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104482 (or 104478 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 131034130120 its reverse (21031430131), we get a palindrome (152065560251).

The spelling of 131034130120 in words is "one hundred thirty-one billion, thirty-four million, one hundred thirty thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 20 29 40 58 116 145 232 290 580 1093 1160 2186 4372 5465 8744 10930 21860 31697 43720 63394 103349 126788 158485 206698 253576 316970 413396 516745 633940 826792 1033490 1267880 2066980 2997121 4133960 5994242 11988484 14985605 23976968 29971210 59942420 112960457 119884840 225920914 451841828 564802285 903683656 1129604570 2259209140 3275853253 4518418280 6551706506 13103413012 16379266265 26206826024 32758532530 65517065060 131034130120