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1300425220 = 22565021261
BaseRepresentation
bin100110110000010…
…1110101000000100
310100121222110001001
41031200232220010
510130402101340
6333012343044
744140301113
oct11540565004
93317873031
101300425220
11608068796
12303614a84
131795566a3
14c49d1c7a
157927629a
hex4d82ea04

1300425220 has 12 divisors (see below), whose sum is σ = 2730893004. Its totient is φ = 520170080.

The previous prime is 1300425211. The next prime is 1300425223. The reversal of 1300425220 is 225240031.

It can be written as a sum of positive squares in 2 ways, for example, as 800097796 + 500327424 = 28286^2 + 22368^2 .

It is a super-2 number, since 2×13004252202 = 3382211505624096800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1300425223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32510611 + ... + 32510650.

It is an arithmetic number, because the mean of its divisors is an integer number (227574417).

Almost surely, 21300425220 is an apocalyptic number.

1300425220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1300425220 is an abundant number, since it is smaller than the sum of its proper divisors (1430467784).

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

1300425220 is a wasteful number, since it uses less digits than its factorization.

1300425220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65021270 (or 65021268 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 1300425220 is about 36061.4090129601. The cubic root of 1300425220 is about 1091.5118654949.

Adding to 1300425220 its reverse (225240031), we get a palindrome (1525665251).

The spelling of 1300425220 in words is "one billion, three hundred million, four hundred twenty-five thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 65021261 130042522 260085044 325106305 650212610 1300425220