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19145007192 = 2336711906099
BaseRepresentation
bin10001110101001000…
…011010000001011000
31211102020201010121110
4101311020122001120
5303202110212232
612443423540320
71245300606333
oct216510320130
954366633543
1019145007192
1181349482a3
12386375a6a0
131a6150bc2c
14cd892361a
15770b7eacc
hex47521a058

19145007192 has 32 divisors (see below), whose sum is σ = 48576888000. Its totient is φ = 6286419744.

The previous prime is 19145007163. The next prime is 19145007223. The reversal of 19145007192 is 29170054191.

It is a self number, because there is not a number n which added to its sum of digits gives 19145007192.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 5951442 + ... + 5954657.

It is an arithmetic number, because the mean of its divisors is an integer number (1518027750).

Almost surely, 219145007192 is an apocalyptic number.

19145007192 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

19145007192 is an abundant number, since it is smaller than the sum of its proper divisors (29431880808).

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

19145007192 is a wasteful number, since it uses less digits than its factorization.

19145007192 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11906175 (or 11906171 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 39.

The spelling of 19145007192 in words is "nineteen billion, one hundred forty-five million, seven thousand, one hundred ninety-two".

Divisors: 1 2 3 4 6 8 12 24 67 134 201 268 402 536 804 1608 11906099 23812198 35718297 47624396 71436594 95248792 142873188 285746376 797708633 1595417266 2393125899 3190834532 4786251798 6381669064 9572503596 19145007192