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131044630 = 2567317617
BaseRepresentation
bin1111100111110…
…01010100010110
3100010120202102211
413303321110112
5232021412010
621000424034
73150601213
oct763712426
9303522384
10131044630
1167a75852
1237a7801a
13211c3102
1413592b0a
15b78808a
hex7cf9516

131044630 has 32 divisors (see below), whose sum is σ = 240545376. Its totient is φ = 51389184.

The previous prime is 131044621. The next prime is 131044643. The reversal of 131044630 is 36440131.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 212082 + ... + 212698.

It is an arithmetic number, because the mean of its divisors is an integer number (7517043).

Almost surely, 2131044630 is an apocalyptic number.

131044630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131044630 is a deficient number, since it is larger than the sum of its proper divisors (109500746).

131044630 is a wasteful number, since it uses less digits than its factorization.

131044630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1008.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 131044630 is about 11447.4726468334. The cubic root of 131044630 is about 507.9329767736.

Adding to 131044630 its reverse (36440131), we get a palindrome (167484761).

The spelling of 131044630 in words is "one hundred thirty-one million, forty-four thousand, six hundred thirty".

Divisors: 1 2 5 10 67 134 317 335 617 634 670 1234 1585 3085 3170 6170 21239 41339 42478 82678 106195 195589 206695 212390 391178 413390 977945 1955890 13104463 26208926 65522315 131044630