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19240970892 = 223111311212687
BaseRepresentation
bin10001111010110110…
…011110101010001100
31211122221021121001120
4101322312132222030
5303401142032032
612501132440540
71250544361023
oct217266365214
954587247046
1019240970892
118184032240
12388b919150
131a7836b4a0
14d075838ba
157792d862c
hex47ad9ea8c

19240970892 has 48 divisors (see below), whose sum is σ = 52744484352. Its totient is φ = 5382089280.

The previous prime is 19240970869. The next prime is 19240970897. The reversal of 19240970892 is 29807904291.

It is not an unprimeable number, because it can be changed into a prime (19240970897) by changing a digit.

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, 5604628 + ... + 5608059.

It is an arithmetic number, because the mean of its divisors is an integer number (1098843424).

Almost surely, 219240970892 is an apocalyptic number.

19240970892 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

19240970892 is an abundant number, since it is smaller than the sum of its proper divisors (33503513460).

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

19240970892 is a wasteful number, since it uses less digits than its factorization.

19240970892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11212718 (or 11212716 counting only the distinct ones).

The product of its (nonzero) digits is 653184, while the sum is 51.

The spelling of 19240970892 in words is "nineteen billion, two hundred forty million, nine hundred seventy thousand, eight hundred ninety-two".

Divisors: 1 2 3 4 6 11 12 13 22 26 33 39 44 52 66 78 132 143 156 286 429 572 858 1716 11212687 22425374 33638061 44850748 67276122 123339557 134552244 145764931 246679114 291529862 370018671 437294793 493358228 583059724 740037342 874589586 1480074684 1603414241 1749179172 3206828482 4810242723 6413656964 9620485446 19240970892