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131000516 = 22193135507
BaseRepresentation
bin1111100111011…
…10100011000100
3100010111111220222
413303232203010
5232014004031
620555443512
73150325463
oct763564304
9303444828
10131000516
1167a45699
1237a56598
13211a8cca
14135809da
15b779e7b
hex7cee8c4

131000516 has 24 divisors (see below), whose sum is σ = 242131680. Its totient is φ = 61843392.

The previous prime is 131000509. The next prime is 131000531. The reversal of 131000516 is 615000131.

It is a super-2 number, since 2×1310005162 = 34322270384532512, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 131000494 and 131000503.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21035 + ... + 26541.

It is an arithmetic number, because the mean of its divisors is an integer number (10088820).

Almost surely, 2131000516 is an apocalyptic number.

It is an amenable number.

131000516 is a deficient number, since it is larger than the sum of its proper divisors (111131164).

131000516 is a wasteful number, since it uses less digits than its factorization.

131000516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5843 (or 5841 counting only the distinct ones).

The product of its (nonzero) digits is 90, while the sum is 17.

The square root of 131000516 is about 11445.5456838021. The cubic root of 131000516 is about 507.8759746410.

Adding to 131000516 its reverse (615000131), we get a palindrome (746000647).

The spelling of 131000516 in words is "one hundred thirty-one million, five hundred sixteen", and thus it is an aban number.

Divisors: 1 2 4 19 38 76 313 626 1252 5507 5947 11014 11894 22028 23788 104633 209266 418532 1723691 3447382 6894764 32750129 65500258 131000516