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19310225031 = 322145580559
BaseRepresentation
bin10001111110111110…
…101010011010000111
31211211202121001212200
4101332332222122013
5304021404200111
612512045045543
71252345130106
oct217676523207
954752531780
1019310225031
11820a133969
1238aab568b3
131a89808676
14d1285003d
15780418256
hex47efaa687

19310225031 has 6 divisors (see below), whose sum is σ = 27892547280. Its totient is φ = 12873483348.

The previous prime is 19310225017. The next prime is 19310225101. The reversal of 19310225031 is 13052201391.

It is not a de Polignac number, because 19310225031 - 211 = 19310222983 is a prime.

It is a super-2 number, since 2×193102250312 (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 19310224986 and 19310225004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19310220031) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1072790271 + ... + 1072790288.

It is an arithmetic number, because the mean of its divisors is an integer number (4648757880).

Almost surely, 219310225031 is an apocalyptic number.

19310225031 is a deficient number, since it is larger than the sum of its proper divisors (8582322249).

19310225031 is a wasteful number, since it uses less digits than its factorization.

19310225031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2145580565 (or 2145580562 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 27.

The spelling of 19310225031 in words is "nineteen billion, three hundred ten million, two hundred twenty-five thousand, thirty-one".

Divisors: 1 3 9 2145580559 6436741677 19310225031