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19470113508 = 22337277715791
BaseRepresentation
bin10010001000100000…
…100101101011100100
31212020220110020122010
4102020200211223210
5304333322113013
612540000034220
71256326143216
oct221040455344
955226406563
1019470113508
11829140a4aa
123934602970
131ab398a431
14d29b905b6
1578e49c7c3
hex488825ae4

19470113508 has 48 divisors (see below), whose sum is σ = 46677867264. Its totient is φ = 6311957760.

The previous prime is 19470113461. The next prime is 19470113563. The reversal of 19470113508 is 80531107491.

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, 1225093 + ... + 1240883.

It is an arithmetic number, because the mean of its divisors is an integer number (972455568).

Almost surely, 219470113508 is an apocalyptic number.

It is an amenable number.

19470113508 is an abundant number, since it is smaller than the sum of its proper divisors (27207753756).

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

19470113508 is a wasteful number, since it uses less digits than its factorization.

19470113508 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18612 (or 18610 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 39.

The spelling of 19470113508 in words is "nineteen billion, four hundred seventy million, one hundred thirteen thousand, five hundred eight".

Divisors: 1 2 3 4 6 12 37 74 111 148 222 444 2777 5554 8331 11108 15791 16662 31582 33324 47373 63164 94746 102749 189492 205498 308247 410996 584267 616494 1168534 1232988 1752801 2337068 3505602 7011204 43851607 87703214 131554821 175406428 263109642 526219284 1622509459 3245018918 4867528377 6490037836 9735056754 19470113508