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13130222021 = 76754151749
BaseRepresentation
bin11000011101001111…
…10100100111000101
31020220001211101111022
430032213310213011
5203342314101041
610010522120525
7643244021450
oct141647644705
936801741438
1013130222021
115628739164
122665350145
131313367557
148c7b86497
1551cac624b
hex30e9f49c5

13130222021 has 16 divisors (see below), whose sum is σ = 15258384000. Its totient is φ = 11065792320.

The previous prime is 13130221987. The next prime is 13130222113. The reversal of 13130222021 is 12022203131.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-13130222021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13130225021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 227855 + ... + 279603.

It is an arithmetic number, because the mean of its divisors is an integer number (953649000).

Almost surely, 213130222021 is an apocalyptic number.

It is an amenable number.

13130222021 is a deficient number, since it is larger than the sum of its proper divisors (2128161979).

13130222021 is an equidigital number, since it uses as much as digits as its factorization.

13130222021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52364.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 13130222021 its reverse (12022203131), we get a palindrome (25152425152).

The spelling of 13130222021 in words is "thirteen billion, one hundred thirty million, two hundred twenty-two thousand, twenty-one".

Divisors: 1 7 67 469 541 3787 36247 51749 253729 362243 3467183 24270281 27996209 195973463 1875746003 13130222021