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15530053013 = 611311943443
BaseRepresentation
bin11100111011010100…
…11100110110010101
31111002022112102201122
432131222130312111
5223301143144023
611045010533325
71056564162326
oct163552346625
944068472648
1015530053013
11664a345762
123014b97245
1316065c42a7
14a747a044d
1560d6172c8
hex39da9cd95

15530053013 has 8 divisors (see below), whose sum is σ = 15905145696. Its totient is φ = 15158847600.

The previous prime is 15530052977. The next prime is 15530053051. The reversal of 15530053013 is 31035003551.

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 15530053013 - 28 = 15530052757 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 (15530053093) 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, 963731 + ... + 979712.

It is an arithmetic number, because the mean of its divisors is an integer number (1988143212).

Almost surely, 215530053013 is an apocalyptic number.

It is an amenable number.

15530053013 is a deficient number, since it is larger than the sum of its proper divisors (375092683).

15530053013 is a wasteful number, since it uses less digits than its factorization.

15530053013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1943635.

The product of its (nonzero) digits is 3375, while the sum is 26.

Adding to 15530053013 its reverse (31035003551), we get a palindrome (46565056564).

The spelling of 15530053013 in words is "fifteen billion, five hundred thirty million, fifty-three thousand, thirteen".

Divisors: 1 61 131 7991 1943443 118550023 254591033 15530053013