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130780826 = 21118132843
BaseRepresentation
bin1111100101110…
…00111010011010
3100010002100120022
413302320322122
5231434441301
620551030442
73145422131
oct762707232
9303070508
10130780826
1167905630
123796b422
1321130007
1413524918
15b734d1b
hex7cb8e9a

130780826 has 16 divisors (see below), whose sum is σ = 215193888. Its totient is φ = 59115600.

The previous prime is 130780823. The next prime is 130780877. The reversal of 130780826 is 628087031.

It is not an unprimeable number, because it can be changed into a prime (130780823) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12440 + ... + 20403.

It is an arithmetic number, because the mean of its divisors is an integer number (13449618).

Almost surely, 2130780826 is an apocalyptic number.

130780826 is a deficient number, since it is larger than the sum of its proper divisors (84413062).

130780826 is a wasteful number, since it uses less digits than its factorization.

130780826 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33037.

The product of its (nonzero) digits is 16128, while the sum is 35.

The square root of 130780826 is about 11435.9444734574. The cubic root of 130780826 is about 507.5919103599.

The spelling of 130780826 in words is "one hundred thirty million, seven hundred eighty thousand, eight hundred twenty-six".

Divisors: 1 2 11 22 181 362 1991 3982 32843 65686 361273 722546 5944583 11889166 65390413 130780826