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15131530227 = 311458531219
BaseRepresentation
bin11100001011110100…
…01101001111110011
31110001112122101020110
432011322031033303
5221442132431402
610541253112403
71043654612322
oct160572151763
943045571213
1015131530227
116465399690
122b23628703
131571b7c1a8
14a378a20b9
155d864656c
hex385e8d3f3

15131530227 has 8 divisors (see below), whose sum is σ = 22009498560. Its totient is φ = 9170624360.

The previous prime is 15131530207. The next prime is 15131530243. The reversal of 15131530227 is 72203513151.

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 15131530227 - 212 = 15131526131 is a prime.

It is a super-2 number, since 2×151315302272 (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 15131530194 and 15131530203.

It is not an unprimeable number, because it can be changed into a prime (15131530207) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 229265577 + ... + 229265642.

It is an arithmetic number, because the mean of its divisors is an integer number (2751187320).

Almost surely, 215131530227 is an apocalyptic number.

15131530227 is a deficient number, since it is larger than the sum of its proper divisors (6877968333).

15131530227 is a wasteful number, since it uses less digits than its factorization.

15131530227 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 458531233.

The product of its (nonzero) digits is 6300, while the sum is 30.

The spelling of 15131530227 in words is "fifteen billion, one hundred thirty-one million, five hundred thirty thousand, two hundred twenty-seven".

Divisors: 1 3 11 33 458531219 1375593657 5043843409 15131530227