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130660870 = 2545728591
BaseRepresentation
bin1111100100110…
…11101000000110
3100002212021000111
413302123220012
5231422121440
620544303234
73144412324
oct762335006
9302767014
10130660870
116783349a
1237911b1a
13210ba532
14134d2d14
15b70e4ea
hex7c9ba06

130660870 has 16 divisors (see below), whose sum is σ = 235712448. Its totient is φ = 52148160.

The previous prime is 130660837. The next prime is 130660879. The reversal of 130660870 is 78066031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130660879) 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, 9726 + ... + 18865.

It is an arithmetic number, because the mean of its divisors is an integer number (14732028).

Almost surely, 2130660870 is an apocalyptic number.

130660870 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

130660870 is a deficient number, since it is larger than the sum of its proper divisors (105051578).

130660870 is a wasteful number, since it uses less digits than its factorization.

130660870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29055.

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 130660870 is about 11430.6985788271. The cubic root of 130660870 is about 507.4366701695.

The spelling of 130660870 in words is "one hundred thirty million, six hundred sixty thousand, eight hundred seventy".