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15213430255379 is a prime number
BaseRepresentation
bin1101110101100010011100…
…0110110010111100010011
31222212101112010000201121212
43131120213012302330103
53443224101121133004
652204541532410335
73130063661344106
oct335304706627423
958771463021555
1015213430255379
114935a85847394
12185856b0169ab
1386480aab6215
143a849652073d
151b5b09bc896e
hexdd6271b2f13

15213430255379 has 2 divisors, whose sum is σ = 15213430255380. Its totient is φ = 15213430255378.

The previous prime is 15213430255277. The next prime is 15213430255409. The reversal of 15213430255379 is 97355203431251.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 15213430255379 - 228 = 15213161819923 is a prime.

It is a super-2 number, since 2×152134302553792 (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (15213430255879) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7606715127689 + 7606715127690.

It is an arithmetic number, because the mean of its divisors is an integer number (7606715127690).

Almost surely, 215213430255379 is an apocalyptic number.

15213430255379 is a deficient number, since it is larger than the sum of its proper divisors (1).

15213430255379 is an equidigital number, since it uses as much as digits as its factorization.

15213430255379 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3402000, while the sum is 50.

The spelling of 15213430255379 in words is "fifteen trillion, two hundred thirteen billion, four hundred thirty million, two hundred fifty-five thousand, three hundred seventy-nine".