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15142705537 = 72738035477
BaseRepresentation
bin11100001101001001…
…10101100110000001
31110002022200010212211
432012210311212001
5222003013034122
610542332422121
71044151605361
oct160644654601
943068603784
1015142705537
116470731883
122b27317941
1315742929bb
14a391709a1
155d9602877
hex386935981

15142705537 has 8 divisors (see below), whose sum is σ = 15170291136. Its totient is φ = 15115139952.

The previous prime is 15142705531. The next prime is 15142705541. The reversal of 15142705537 is 73550724151.

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-15142705537 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 15142705537.

It is not an unprimeable number, because it can be changed into a prime (15142705531) 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, 2762043 + ... + 2767519.

It is an arithmetic number, because the mean of its divisors is an integer number (1896286392).

Almost surely, 215142705537 is an apocalyptic number.

It is an amenable number.

15142705537 is a deficient number, since it is larger than the sum of its proper divisors (27585599).

15142705537 is an equidigital number, since it uses as much as digits as its factorization.

15142705537 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10007.

The product of its (nonzero) digits is 147000, while the sum is 40.

The spelling of 15142705537 in words is "fifteen billion, one hundred forty-two million, seven hundred five thousand, five hundred thirty-seven".

Divisors: 1 727 3803 5477 2764781 3981779 20829031 15142705537