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130603280 = 2452297129
BaseRepresentation
bin1111100100011…
…01100100010000
3100002202100000112
413302031210100
5231413301110
620543140452
73144052403
oct762154420
9302670015
10130603280
11677a41a5
12378a4728
132109a262
14134b9d3a
15b6ec405
hex7c8d910

130603280 has 40 divisors (see below), whose sum is σ = 305021400. Its totient is φ = 52005888.

The previous prime is 130603273. The next prime is 130603309. The reversal of 130603280 is 82306031.

It can be written as a sum of positive squares in 4 ways, for example, as 47720464 + 82882816 = 6908^2 + 9104^2 .

It is a tau number, because it is divible by the number of its divisors (40).

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, 14756 + ... + 21884.

It is an arithmetic number, because the mean of its divisors is an integer number (7625535).

Almost surely, 2130603280 is an apocalyptic number.

130603280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

130603280 is an abundant number, since it is smaller than the sum of its proper divisors (174418120).

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

130603280 is a wasteful number, since it uses less digits than its factorization.

130603280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7371 (or 7365 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 130603280 is about 11428.1792075553. The cubic root of 130603280 is about 507.3621067281.

The spelling of 130603280 in words is "one hundred thirty million, six hundred three thousand, two hundred eighty".

Divisors: 1 2 4 5 8 10 16 20 40 80 229 458 916 1145 1832 2290 3664 4580 7129 9160 14258 18320 28516 35645 57032 71290 114064 142580 285160 570320 1632541 3265082 6530164 8162705 13060328 16325410 26120656 32650820 65301640 130603280