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130651220 = 22571949117
BaseRepresentation
bin1111100100110…
…01010001010100
3100002211202210002
413302121101110
5231421314340
620544150432
73144342230
oct762312124
9302752702
10130651220
1167827217
1237908418
13210b601b
14134cd5c0
15b70b715
hex7c99454

130651220 has 48 divisors (see below), whose sum is σ = 330072960. Its totient is φ = 42436224.

The previous prime is 130651219. The next prime is 130651237. The reversal of 130651220 is 22156031.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 130651192 and 130651201.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21899 + ... + 27218.

It is an arithmetic number, because the mean of its divisors is an integer number (6876520).

Almost surely, 2130651220 is an apocalyptic number.

130651220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

130651220 is an abundant number, since it is smaller than the sum of its proper divisors (199421740).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

130651220 is a wasteful number, since it uses less digits than its factorization.

130651220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49152 (or 49150 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 130651220 is about 11430.2764620984. The cubic root of 130651220 is about 507.4241775632.

The spelling of 130651220 in words is "one hundred thirty million, six hundred fifty-one thousand, two hundred twenty".

Divisors: 1 2 4 5 7 10 14 19 20 28 35 38 70 76 95 133 140 190 266 380 532 665 1330 2660 49117 98234 196468 245585 343819 491170 687638 933223 982340 1375276 1719095 1866446 3438190 3732892 4666115 6532561 6876380 9332230 13065122 18664460 26130244 32662805 65325610 130651220