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19130224452 = 2231594185371
BaseRepresentation
bin10001110100010000…
…000000111101000100
31211101012220002111120
4101310100000331010
5303134314140302
612442135033540
71245031140063
oct216420007504
954335802446
1019130224452
118127570859
12385a80b8b0
131a5b434451
14cd69961da
1576e70e9bc
hex474400f44

19130224452 has 12 divisors (see below), whose sum is σ = 44637190416. Its totient is φ = 6376741480.

The previous prime is 19130224439. The next prime is 19130224453. The reversal of 19130224452 is 25442203191.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (19130224453) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 797092674 + ... + 797092697.

It is an arithmetic number, because the mean of its divisors is an integer number (3719765868).

Almost surely, 219130224452 is an apocalyptic number.

19130224452 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

19130224452 is an abundant number, since it is smaller than the sum of its proper divisors (25506965964).

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

19130224452 is a wasteful number, since it uses less digits than its factorization.

19130224452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1594185378 (or 1594185376 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 33.

The spelling of 19130224452 in words is "nineteen billion, one hundred thirty million, two hundred twenty-four thousand, four hundred fifty-two".

Divisors: 1 2 3 4 6 12 1594185371 3188370742 4782556113 6376741484 9565112226 19130224452