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19272909103 = 719144909091
BaseRepresentation
bin10001111100110000…
…010100000100101111
31211202011101020001021
4101330300110010233
5303432331042403
612504233155011
71251413011240
oct217460240457
954664336037
1019272909103
1181a0066958
12389a55ba67
131a81b71736
14d0b8d8cc7
1577bee68bd
hex47cc1412f

19272909103 has 8 divisors (see below), whose sum is σ = 23185454720. Its totient is φ = 15650181720.

The previous prime is 19272909101. The next prime is 19272909113. The reversal of 19272909103 is 30190927291.

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 19272909103 - 21 = 19272909101 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 19272909103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19272909101) 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, 72454413 + ... + 72454678.

It is an arithmetic number, because the mean of its divisors is an integer number (2898181840).

Almost surely, 219272909103 is an apocalyptic number.

19272909103 is a deficient number, since it is larger than the sum of its proper divisors (3912545617).

19272909103 is a wasteful number, since it uses less digits than its factorization.

19272909103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144909117.

The product of its (nonzero) digits is 61236, while the sum is 43.

The spelling of 19272909103 in words is "nineteen billion, two hundred seventy-two million, nine hundred nine thousand, one hundred three".

Divisors: 1 7 19 133 144909091 1014363637 2753272729 19272909103