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19128312130 = 2519293471563
BaseRepresentation
bin10001110100001000…
…101110000101000010
31211101002021221021211
4101310020232011002
5303133321442010
612442030040334
71245005653564
oct216410560502
954332257254
1019128312130
118126485024
12385a0490aa
131a5ac14bb5
14cd6619334
1576e48308a
hex47422e142

19128312130 has 32 divisors (see below), whose sum is σ = 37492891200. Its totient is φ = 6998668992.

The previous prime is 19128312113. The next prime is 19128312163. The reversal of 19128312130 is 3121382191.

It is a junction number, because it is equal to n+sod(n) for n = 19128312092 and 19128312101.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1730272 + ... + 1741291.

It is an arithmetic number, because the mean of its divisors is an integer number (1171652850).

Almost surely, 219128312130 is an apocalyptic number.

19128312130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

19128312130 is a deficient number, since it is larger than the sum of its proper divisors (18364579070).

19128312130 is a wasteful number, since it uses less digits than its factorization.

19128312130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3471618.

The product of its (nonzero) digits is 2592, while the sum is 31.

The spelling of 19128312130 in words is "nineteen billion, one hundred twenty-eight million, three hundred twelve thousand, one hundred thirty".

Divisors: 1 2 5 10 19 29 38 58 95 145 190 290 551 1102 2755 5510 3471563 6943126 17357815 34715630 65959697 100675327 131919394 201350654 329798485 503376635 659596970 1006753270 1912831213 3825662426 9564156065 19128312130