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15255142297 = 67227688691
BaseRepresentation
bin11100011010100011…
…01111111110011001
31110101011020112010021
432031101233332121
5222220304023142
611001430350441
71050015366343
oct161521577631
943334215107
1015255142297
11651914821a
122b58abb421
13159166c225
14a4a07c293
155e4412267
hex38d46ff99

15255142297 has 4 divisors (see below), whose sum is σ = 15482831056. Its totient is φ = 15027453540.

The previous prime is 15255142283. The next prime is 15255142327. The reversal of 15255142297 is 79224155251.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 15255142297 - 211 = 15255140249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15255140297) 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, 113844279 + ... + 113844412.

It is an arithmetic number, because the mean of its divisors is an integer number (3870707764).

Almost surely, 215255142297 is an apocalyptic number.

It is an amenable number.

15255142297 is a deficient number, since it is larger than the sum of its proper divisors (227688759).

15255142297 is an equidigital number, since it uses as much as digits as its factorization.

15255142297 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227688758.

The product of its digits is 252000, while the sum is 43.

The spelling of 15255142297 in words is "fifteen billion, two hundred fifty-five million, one hundred forty-two thousand, two hundred ninety-seven".

Divisors: 1 67 227688691 15255142297