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15122102061 = 3111483308999
BaseRepresentation
bin11100001010101100…
…01111011100101101
31110000212220101020010
432011112033130231
5221432224231221
610540315043433
71043511514053
oct160526173455
943025811203
1015122102061
11646003a110
122b20440579
13156cc2a9b1
14a3652a1d3
155d78d2c76
hex38558f72d

15122102061 has 16 divisors (see below), whose sum is σ = 22010688000. Its totient is φ = 9158700720.

The previous prime is 15122101999. The next prime is 15122102069. The reversal of 15122102061 is 16020122151.

It is not a de Polignac number, because 15122102061 - 29 = 15122101549 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15122102069) 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 15 ways as a sum of consecutive naturals, for example, 105561 + ... + 203438.

It is an arithmetic number, because the mean of its divisors is an integer number (1375668000).

Almost surely, 215122102061 is an apocalyptic number.

15122102061 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

15122102061 is a deficient number, since it is larger than the sum of its proper divisors (6888585939).

15122102061 is a wasteful number, since it uses less digits than its factorization.

15122102061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 310496.

The product of its (nonzero) digits is 240, while the sum is 21.

The spelling of 15122102061 in words is "fifteen billion, one hundred twenty-two million, one hundred two thousand, sixty-one".

Divisors: 1 3 11 33 1483 4449 16313 48939 308999 926997 3398989 10196967 458245517 1374736551 5040700687 15122102061