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13258320970 = 253457383521
BaseRepresentation
bin11000101100100000…
…11110110001001010
31021012222212111012211
430112100132301022
5204123112232340
610031335455334
7646360603666
oct142620366112
937188774184
1013258320970
115693a81864
1226a022754a
131333a6894b
148dabad8a6
15528e7b5ea
hex31641ec4a

13258320970 has 16 divisors (see below), whose sum is σ = 23871943368. Its totient is φ = 5301780480.

The previous prime is 13258320941. The next prime is 13258320979. The reversal of 13258320970 is 7902385231.

It can be written as a sum of positive squares in 4 ways, for example, as 3122462641 + 10135858329 = 55879^2 + 100677^2 .

It is not an unprimeable number, because it can be changed into a prime (13258320979) 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, 157191 + ... + 226330.

Almost surely, 213258320970 is an apocalyptic number.

13258320970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13258320970 is a deficient number, since it is larger than the sum of its proper divisors (10613622398).

13258320970 is a wasteful number, since it uses less digits than its factorization.

13258320970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 386985.

The product of its (nonzero) digits is 90720, while the sum is 40.

The spelling of 13258320970 in words is "thirteen billion, two hundred fifty-eight million, three hundred twenty thousand, nine hundred seventy".

Divisors: 1 2 5 10 3457 6914 17285 34570 383521 767042 1917605 3835210 1325832097 2651664194 6629160485 13258320970