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19219216230 = 23251571360171
BaseRepresentation
bin10001111001100011…
…011111011101100110
31211121102100100021100
4101321203133131212
5303330104404410
612455034300530
71250161433244
oct217143373546
954542310240
1019219216230
118172823685
123884587746
131a739c24c6
14d0471d794
1577743c8c0
hex4798df766

19219216230 has 48 divisors (see below), whose sum is σ = 50288279184. Its totient is φ = 5092476480.

The previous prime is 19219216223. The next prime is 19219216271. The reversal of 19219216230 is 3261291291.

19219216230 is a `hidden beast` number, since 1 + 9 + 2 + 1 + 9 + 21 + 623 + 0 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 665956 + ... + 694215.

It is an arithmetic number, because the mean of its divisors is an integer number (1047672483).

Almost surely, 219219216230 is an apocalyptic number.

19219216230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

19219216230 is an abundant number, since it is smaller than the sum of its proper divisors (31069062954).

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

19219216230 is a wasteful number, since it uses less digits than its factorization.

19219216230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1360341 (or 1360338 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 36.

The spelling of 19219216230 in words is "nineteen billion, two hundred nineteen million, two hundred sixteen thousand, two hundred thirty".

Divisors: 1 2 3 5 6 9 10 15 18 30 45 90 157 314 471 785 942 1413 1570 2355 2826 4710 7065 14130 1360171 2720342 4080513 6800855 8161026 12241539 13601710 20402565 24483078 40805130 61207695 122415390 213546847 427093694 640640541 1067734235 1281281082 1921921623 2135468470 3203202705 3843843246 6406405410 9609608115 19219216230