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15253445243 = 991118113033
BaseRepresentation
bin11100011010010110…
…10001101001111011
31110101001001022012102
432031023101221323
5222214340221433
611001330134015
71046665100561
oct161513215173
943331038172
1015253445243
1165181991a3
122b5842130b
1315911c695a
14a49b59a31
155e41c94e8
hex38d2d1a7b

15253445243 has 8 divisors (see below), whose sum is σ = 15282938496. Its totient is φ = 15223982400.

The previous prime is 15253445237. The next prime is 15253445257. The reversal of 15253445243 is 34254435251.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 15253445243 - 24 = 15253445227 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 15253445197 and 15253445206.

It is not an unprimeable number, because it can be changed into a prime (15253445213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1163855 + ... + 1176887.

It is an arithmetic number, because the mean of its divisors is an integer number (1910367312).

Almost surely, 215253445243 is an apocalyptic number.

15253445243 is a deficient number, since it is larger than the sum of its proper divisors (29493253).

15253445243 is a wasteful number, since it uses less digits than its factorization.

15253445243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15205.

The product of its digits is 288000, while the sum is 38.

The spelling of 15253445243 in words is "fifteen billion, two hundred fifty-three million, four hundred forty-five thousand, two hundred forty-three".

Divisors: 1 991 1181 13033 1170371 12915703 15391973 15253445243