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130185590 = 2561457467
BaseRepresentation
bin1111100001001…
…11100101110110
3100001222010001112
413300213211312
5231311414330
620530155022
73140362553
oct760474566
9301863045
10130185590
11675393a7
1237722a72
1320c820c2
141340ba2a
15b668795
hex7c27976

130185590 has 32 divisors (see below), whose sum is σ = 239207904. Its totient is φ = 50999040.

The previous prime is 130185581. The next prime is 130185599. The reversal of 130185590 is 95581031.

It is an interprime number because it is at equal distance from previous prime (130185581) and next prime (130185599).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130185599) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 278537 + ... + 279003.

It is an arithmetic number, because the mean of its divisors is an integer number (7475247).

Almost surely, 2130185590 is an apocalyptic number.

130185590 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

130185590 is a deficient number, since it is larger than the sum of its proper divisors (109022314).

130185590 is a wasteful number, since it uses less digits than its factorization.

130185590 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 992.

The product of its (nonzero) digits is 5400, while the sum is 32.

The square root of 130185590 is about 11409.8900082341. The cubic root of 130185590 is about 506.8206542760.

The spelling of 130185590 in words is "one hundred thirty million, one hundred eighty-five thousand, five hundred ninety".

Divisors: 1 2 5 10 61 122 305 457 467 610 914 934 2285 2335 4570 4670 27877 28487 55754 56974 139385 142435 213419 278770 284870 426838 1067095 2134190 13018559 26037118 65092795 130185590