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1300113220 = 22579286523
BaseRepresentation
bin100110101111110…
…0010011101000100
310100121101121001111
41031133202131010
510130312110340
6333001534404
744134531360
oct11537423504
93317347044
101300113220
1160797533a
123034a4404
13179477683
14c49502a0
1579213aea
hex4d7e2744

1300113220 has 24 divisors (see below), whose sum is σ = 3120272064. Its totient is φ = 445753056.

The previous prime is 1300113193. The next prime is 1300113223. The reversal of 1300113220 is 223110031.

It is a self number, because there is not a number n which added to its sum of digits gives 1300113220.

It is not an unprimeable number, because it can be changed into a prime (1300113223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4643122 + ... + 4643401.

It is an arithmetic number, because the mean of its divisors is an integer number (130011336).

Almost surely, 21300113220 is an apocalyptic number.

1300113220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1300113220 is an abundant number, since it is smaller than the sum of its proper divisors (1820158844).

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

1300113220 is a wasteful number, since it uses less digits than its factorization.

1300113220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9286539 (or 9286537 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 1300113220 is about 36057.0827993613. The cubic root of 1300113220 is about 1091.4245661163.

Adding to 1300113220 its reverse (223110031), we get a palindrome (1523223251).

The spelling of 1300113220 in words is "one billion, three hundred million, one hundred thirteen thousand, two hundred twenty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 9286523 18573046 37146092 46432615 65005661 92865230 130011322 185730460 260022644 325028305 650056610 1300113220