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131055530 = 2526349831
BaseRepresentation
bin1111100111110…
…11111110101010
3100010121022101112
413303323332222
5232022234110
621000550322
73150645044
oct763737652
9303538345
10131055530
1167a82a61
1237a823a2
13211c8068
1413596a94
15b78b405
hex7cfbfaa

131055530 has 16 divisors (see below), whose sum is σ = 236801664. Its totient is φ = 52221840.

The previous prime is 131055523. The next prime is 131055583. The reversal of 131055530 is 35550131.

It is a junction number, because it is equal to n+sod(n) for n = 131055496 and 131055505.

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, 22286 + ... + 27545.

It is an arithmetic number, because the mean of its divisors is an integer number (14800104).

Almost surely, 2131055530 is an apocalyptic number.

131055530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131055530 is a deficient number, since it is larger than the sum of its proper divisors (105746134).

131055530 is a wasteful number, since it uses less digits than its factorization.

131055530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50101.

The product of its (nonzero) digits is 1125, while the sum is 23.

The square root of 131055530 is about 11447.9487245532. The cubic root of 131055530 is about 507.9470592938.

The spelling of 131055530 in words is "one hundred thirty-one million, fifty-five thousand, five hundred thirty".

Divisors: 1 2 5 10 263 526 1315 2630 49831 99662 249155 498310 13105553 26211106 65527765 131055530