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19508458230 = 233572253549
BaseRepresentation
bin10010001010110010…
…110111001011110110
31212100120121100201000
4102022302313023312
5304423131130410
612543445544130
71260303105342
oct221262671366
955316540630
1019508458230
11830101a458
123945415046
131abb8c4711
14d30cd2622
15792a23dc0
hex48acb72f6

19508458230 has 32 divisors (see below), whose sum is σ = 52022556000. Its totient is φ = 5202255456.

The previous prime is 19508458223. The next prime is 19508458243. The reversal of 19508458230 is 3285480591.

19508458230 is a `hidden beast` number, since 19 + 50 + 8 + 4 + 582 + 3 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36126505 + ... + 36127044.

It is an arithmetic number, because the mean of its divisors is an integer number (1625704875).

Almost surely, 219508458230 is an apocalyptic number.

19508458230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

19508458230 is an abundant number, since it is smaller than the sum of its proper divisors (32514097770).

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

19508458230 is a wasteful number, since it uses less digits than its factorization.

19508458230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72253565 (or 72253559 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 45.

The spelling of 19508458230 in words is "nineteen billion, five hundred eight million, four hundred fifty-eight thousand, two hundred thirty".

Divisors: 1 2 3 5 6 9 10 15 18 27 30 45 54 90 135 270 72253549 144507098 216760647 361267745 433521294 650281941 722535490 1083803235 1300563882 1950845823 2167606470 3251409705 3901691646 6502819410 9754229115 19508458230