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19312468122 = 234483717989
BaseRepresentation
bin10001111111000111…
…001110000010011010
31211211220211000211010
4101333013032002122
5304022442434442
612512205114350
71252403161533
oct217707160232
954756730733
1019312468122
118210426162
1238ab8589b6
131a8a11263c
14d12c7568a
1578070cb9c
hex47f1ce09a

19312468122 has 16 divisors (see below), whose sum is σ = 38633605920. Its totient is φ = 6436044432.

The previous prime is 19312468079. The next prime is 19312468127. The reversal of 19312468122 is 22186421391.

It is not an unprimeable number, because it can be changed into a prime (19312468127) 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, 332097 + ... + 385892.

It is an arithmetic number, because the mean of its divisors is an integer number (2414600370).

Almost surely, 219312468122 is an apocalyptic number.

19312468122 is an abundant number, since it is smaller than the sum of its proper divisors (19321137798).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

19312468122 is a wasteful number, since it uses less digits than its factorization.

19312468122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 722477.

The product of its digits is 41472, while the sum is 39.

The spelling of 19312468122 in words is "nineteen billion, three hundred twelve million, four hundred sixty-eight thousand, one hundred twenty-two".

Divisors: 1 2 3 6 4483 8966 13449 26898 717989 1435978 2153967 4307934 3218744687 6437489374 9656234061 19312468122