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130661025 = 352111091453
BaseRepresentation
bin1111100100110…
…11101010100001
3100002212021020020
413302123222201
5231422123100
620544304053
73144412635
oct762335241
9302767206
10130661025
1167833620
1237912029
13210ba621
14134d2dc5
15b70e5a0
hex7c9baa1

130661025 has 48 divisors (see below), whose sum is σ = 237990720. Its totient is φ = 62726400.

The previous prime is 130661009. The next prime is 130661051. The reversal of 130661025 is 520166031.

It is not a de Polignac number, because 130661025 - 24 = 130661009 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 130660986 and 130661004.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 89199 + ... + 90651.

It is an arithmetic number, because the mean of its divisors is an integer number (4958140).

Almost surely, 2130661025 is an apocalyptic number.

130661025 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

130661025 is a deficient number, since it is larger than the sum of its proper divisors (107329695).

130661025 is a wasteful number, since it uses less digits than its factorization.

130661025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1586 (or 1581 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 130661025 is about 11430.7053588132. The cubic root of 130661025 is about 507.4368708229.

The spelling of 130661025 in words is "one hundred thirty million, six hundred sixty-one thousand, twenty-five".

Divisors: 1 3 5 11 15 25 33 55 75 109 165 275 327 545 825 1199 1453 1635 2725 3597 4359 5995 7265 8175 15983 17985 21795 29975 36325 47949 79915 89925 108975 158377 239745 399575 475131 791885 1198725 1742147 2375655 3959425 5226441 8710735 11878275 26132205 43553675 130661025