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130392890 = 2517767017
BaseRepresentation
bin1111100010110…
…10001100111010
3100002100122102022
413301122030322
5231340033030
620534434442
73142215125
oct761321472
9302318368
10130392890
1167670121
1237802a22
1321025574
14134633bc
15b6a9de5
hex7c5a33a

130392890 has 16 divisors (see below), whose sum is σ = 248513832. Its totient is φ = 49089024.

The previous prime is 130392887. The next prime is 130392937. The reversal of 130392890 is 98293031.

It can be written as a sum of positive squares in 4 ways, for example, as 123854641 + 6538249 = 11129^2 + 2557^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 130392890.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 383339 + ... + 383678.

Almost surely, 2130392890 is an apocalyptic number.

130392890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

130392890 is a deficient number, since it is larger than the sum of its proper divisors (118120942).

130392890 is a wasteful number, since it uses less digits than its factorization.

130392890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 767041.

The product of its (nonzero) digits is 11664, while the sum is 35.

The square root of 130392890 is about 11418.9706191057. The cubic root of 130392890 is about 507.0895222437.

The spelling of 130392890 in words is "one hundred thirty million, three hundred ninety-two thousand, eight hundred ninety".

Divisors: 1 2 5 10 17 34 85 170 767017 1534034 3835085 7670170 13039289 26078578 65196445 130392890