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19882641072 = 243759174527
BaseRepresentation
bin10010100001000110…
…010000011010110000
31220022122200211001210
4102201012100122300
5311204424003242
613044534000120
71302465442410
oct224106203260
956278624053
1019882641072
118483261578
123a2a7a6040
131b4b296b98
14d68896640
157b57d7d9c
hex4a11906b0

19882641072 has 40 divisors (see below), whose sum is σ = 58701131776. Its totient is φ = 5680754496.

The previous prime is 19882641071. The next prime is 19882641073. The reversal of 19882641072 is 27014628891.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (19882641071) and next prime (19882641073).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (19882641071) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29586928 + ... + 29587599.

Almost surely, 219882641072 is an apocalyptic number.

19882641072 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

19882641072 is an abundant number, since it is smaller than the sum of its proper divisors (38818490704).

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

19882641072 is a wasteful number, since it uses less digits than its factorization.

19882641072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59174545 (or 59174539 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 48.

The spelling of 19882641072 in words is "nineteen billion, eight hundred eighty-two million, six hundred forty-one thousand, seventy-two".

Divisors: 1 2 3 4 6 7 8 12 14 16 21 24 28 42 48 56 84 112 168 336 59174527 118349054 177523581 236698108 355047162 414221689 473396216 710094324 828443378 946792432 1242665067 1420188648 1656886756 2485330134 2840377296 3313773512 4970660268 6627547024 9941320536 19882641072