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19412302068 = 22321932793941
BaseRepresentation
bin10010000101000100…
…000011100011110100
31212002212200010020200
4102011010003203310
5304224022131233
612530133000500
71255024562565
oct220504034364
955085603220
1019412302068
118261813955
123919183130
131aa49c8693
14d2222216c
1578937d313
hex4851038f4

19412302068 has 36 divisors (see below), whose sum is σ = 49324252068. Its totient is φ = 6437237760.

The previous prime is 19412302067. The next prime is 19412302069. The reversal of 19412302068 is 86020321491.

19412302068 is a `hidden beast` number, since 1 + 9 + 412 + 30 + 206 + 8 = 666.

It is an interprime number because it is at equal distance from previous prime (19412302067) and next prime (19412302069).

It can be written as a sum of positive squares in 2 ways, for example, as 13749438564 + 5662863504 = 117258^2 + 75252^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19412302067) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 1390023 + ... + 1403918.

It is an arithmetic number, because the mean of its divisors is an integer number (1370118113).

Almost surely, 219412302068 is an apocalyptic number.

19412302068 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

19412302068 is an abundant number, since it is smaller than the sum of its proper divisors (29911950000).

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

19412302068 is a wasteful number, since it uses less digits than its factorization.

19412302068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2794144 (or 2794139 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The spelling of 19412302068 in words is "nineteen billion, four hundred twelve million, three hundred two thousand, sixty-eight".

Divisors: 1 2 3 4 6 9 12 18 36 193 386 579 772 1158 1737 2316 3474 6948 2793941 5587882 8381823 11175764 16763646 25145469 33527292 50290938 100581876 539230613 1078461226 1617691839 2156922452 3235383678 4853075517 6470767356 9706151034 19412302068