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19852288430 = 2513295265859
BaseRepresentation
bin10010011111010010…
…011110000110101110
31220020112120202001212
4102133102132012232
5311124141212210
613041531234422
71301646444632
oct223722360656
956215522055
1019852288430
118468110147
123a205a8a12
131b44bca540
14d64834dc2
157b2cde805
hex49f49e1ae

19852288430 has 32 divisors (see below), whose sum is σ = 39809901600. Its totient is φ = 7077313152.

The previous prime is 19852288403. The next prime is 19852288433. The reversal of 19852288430 is 3488225891.

It is a super-2 number, since 2×198522884302 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19852288433) 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, 2629160 + ... + 2636699.

It is an arithmetic number, because the mean of its divisors is an integer number (1244059425).

Almost surely, 219852288430 is an apocalyptic number.

19852288430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

19852288430 is an abundant number, since it is smaller than the sum of its proper divisors (19957613170).

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

19852288430 is a wasteful number, since it uses less digits than its factorization.

19852288430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5265908.

The product of its (nonzero) digits is 1105920, while the sum is 50.

The spelling of 19852288430 in words is "nineteen billion, eight hundred fifty-two million, two hundred eighty-eight thousand, four hundred thirty".

Divisors: 1 2 5 10 13 26 29 58 65 130 145 290 377 754 1885 3770 5265859 10531718 26329295 52658590 68456167 136912334 152709911 305419822 342280835 684561670 763549555 1527099110 1985228843 3970457686 9926144215 19852288430