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15392385470017 = 421336110878157
BaseRepresentation
bin1101111111111101000110…
…1010110000111001000001
32000111111102210211112210101
43133333101222300321001
54004142101140020032
652423055252002401
73146030442514543
oct337772152607101
960444383745711
1015392385470017
1149a4968356896
121887192900401
1387865a13c87a
143b2dd1671693
151ba5d0805de7
hexdffd1ab0e41

15392385470017 has 8 divisors (see below), whose sum is σ = 15433538956712. Its totient is φ = 15351253747200.

The previous prime is 15392385469963. The next prime is 15392385470029. The reversal of 15392385470017 is 71007458329351.

It can be written as a sum of positive squares in 4 ways, for example, as 2421086208256 + 12971299261761 = 1555984^2 + 3601569^2 .

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-15392385470017 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 15392385470017.

It is not an unprimeable number, because it can be changed into a prime (15392385470047) 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, 4024098 + ... + 6854059.

It is an arithmetic number, because the mean of its divisors is an integer number (1929192369589).

Almost surely, 215392385470017 is an apocalyptic number.

It is an amenable number.

15392385470017 is a deficient number, since it is larger than the sum of its proper divisors (41153486695).

15392385470017 is a wasteful number, since it uses less digits than its factorization.

15392385470017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10881939.

The product of its (nonzero) digits is 6350400, while the sum is 55.

The spelling of 15392385470017 in words is "fifteen trillion, three hundred ninety-two billion, three hundred eighty-five million, four hundred seventy thousand, seventeen".

Divisors: 1 421 3361 1414981 10878157 4579704097 36561485677 15392385470017