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130456020 = 22354746261
BaseRepresentation
bin1111100011010…
…01100111010100
3100002110212000110
413301221213110
5231344043040
620540043020
73142600152
oct761514724
9302425013
10130456020
11677035a2
1237833470
1321048216
141347c3d2
15b6bd980
hex7c699d4

130456020 has 48 divisors (see below), whose sum is σ = 373056768. Its totient is φ = 34047360.

The previous prime is 130456009. The next prime is 130456057. The reversal of 130456020 is 20654031.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20311 + ... + 25950.

It is an arithmetic number, because the mean of its divisors is an integer number (7772016).

Almost surely, 2130456020 is an apocalyptic number.

130456020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

130456020 is an abundant number, since it is smaller than the sum of its proper divisors (242600748).

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

130456020 is a wasteful number, since it uses less digits than its factorization.

130456020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46320 (or 46318 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 130456020 is about 11421.7345442800. The cubic root of 130456020 is about 507.1713452035.

The spelling of 130456020 in words is "one hundred thirty million, four hundred fifty-six thousand, twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 47 60 94 141 188 235 282 470 564 705 940 1410 2820 46261 92522 138783 185044 231305 277566 462610 555132 693915 925220 1387830 2174267 2775660 4348534 6522801 8697068 10871335 13045602 21742670 26091204 32614005 43485340 65228010 130456020