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13130201243 = 17772364779
BaseRepresentation
bin11000011101001111…
…01111100010011011
31020220001210022222202
430032213233202123
5203342312414433
610010521440415
7643243604045
oct141647574233
936801708882
1013130201243
115628724595
12266534010b
13131335ac63
148c7b7ca95
1551cabeee8
hex30e9ef89b

13130201243 has 4 divisors (see below), whose sum is σ = 13902566040. Its totient is φ = 12357836448.

The previous prime is 13130201191. The next prime is 13130201257. The reversal of 13130201243 is 34210203131.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13130201243 - 210 = 13130200219 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13130201543) 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, 386182373 + ... + 386182406.

It is an arithmetic number, because the mean of its divisors is an integer number (3475641510).

Almost surely, 213130201243 is an apocalyptic number.

13130201243 is a deficient number, since it is larger than the sum of its proper divisors (772364797).

13130201243 is an equidigital number, since it uses as much as digits as its factorization.

13130201243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 772364796.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 13130201243 its reverse (34210203131), we get a palindrome (47340404374).

The spelling of 13130201243 in words is "thirteen billion, one hundred thirty million, two hundred one thousand, two hundred forty-three".

Divisors: 1 17 772364779 13130201243