Search a number
-
+
15348045817 = 138913265381
BaseRepresentation
bin11100100101101000…
…01001011111111001
31110121122001111210101
432102310021133321
5222413044431232
611014545515401
71052224144156
oct162264113771
943548044711
1015348045817
116566631a95
122b84042b61
1315a7999920
14a5854322d
155ec6641e7
hex392d097f9

15348045817 has 8 divisors (see below), whose sum is σ = 16714381320. Its totient is φ = 14008241280.

The previous prime is 15348045787. The next prime is 15348045829. The reversal of 15348045817 is 71854084351.

It can be written as a sum of positive squares in 4 ways, for example, as 399560121 + 14948485696 = 19989^2 + 122264^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-15348045817 is a prime.

It is not an unprimeable number, because it can be changed into a prime (15348045847) 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, 6631534 + ... + 6633847.

It is an arithmetic number, because the mean of its divisors is an integer number (2089297665).

Almost surely, 215348045817 is an apocalyptic number.

It is an amenable number.

15348045817 is a deficient number, since it is larger than the sum of its proper divisors (1366335503).

15348045817 is a wasteful number, since it uses less digits than its factorization.

15348045817 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13265483.

The product of its (nonzero) digits is 537600, while the sum is 46.

The spelling of 15348045817 in words is "fifteen billion, three hundred forty-eight million, forty-five thousand, eight hundred seventeen".

Divisors: 1 13 89 1157 13265381 172449953 1180618909 15348045817