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15072230087293 = 197142837535637
BaseRepresentation
bin1101101101010100011011…
…1010111001101001111101
31222100220001121222222202211
43123111012322321221331
53433420411400243133
652020030435020421
73113634624616351
oct333250672715175
958326047888684
1015072230087293
114891107a521a5
12183512343a711
138543c76a13c2
143a16dd75b461
151b20e3936bcd
hexdb546eb9a7d

15072230087293 has 8 divisors (see below), whose sum is σ = 15148873207512. Its totient is φ = 14995588324416.

The previous prime is 15072230087287. The next prime is 15072230087339. The reversal of 15072230087293 is 39278003227051.

It can be written as a sum of positive squares in 4 ways, for example, as 632435286564 + 14439794800729 = 795258^2 + 3799973^2 .

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-15072230087293 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15072230087203) 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, 27871071 + ... + 28406707.

It is an arithmetic number, because the mean of its divisors is an integer number (1893609150939).

Almost surely, 215072230087293 is an apocalyptic number.

It is an amenable number.

15072230087293 is a deficient number, since it is larger than the sum of its proper divisors (76643120219).

15072230087293 is a wasteful number, since it uses less digits than its factorization.

15072230087293 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 678671.

The product of its (nonzero) digits is 1270080, while the sum is 49.

The spelling of 15072230087293 in words is "fifteen trillion, seventy-two billion, two hundred thirty million, eighty-seven thousand, two hundred ninety-three".

Divisors: 1 197 142837 535637 28138889 105520489 76508782169 15072230087293