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19829082901 = 158031254767
BaseRepresentation
bin10010011101111001…
…111100101100010101
31220011220220210001211
4102131321330230111
5311102221123101
613035342021421
71301245265215
oct223571745425
956156823054
1019829082901
118456000521
123a14877871
131b40164064
14d61714245
157b0c58c51
hex49de7cb15

19829082901 has 4 divisors (see below), whose sum is σ = 19830353472. Its totient is φ = 19827812332.

The previous prime is 19829082799. The next prime is 19829082919. The reversal of 19829082901 is 10928092891.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 19829082901 - 27 = 19829082773 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19829082941) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 611581 + ... + 643186.

It is an arithmetic number, because the mean of its divisors is an integer number (4957588368).

Almost surely, 219829082901 is an apocalyptic number.

It is an amenable number.

19829082901 is a deficient number, since it is larger than the sum of its proper divisors (1270571).

19829082901 is a wasteful number, since it uses less digits than its factorization.

19829082901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1270570.

The product of its (nonzero) digits is 186624, while the sum is 49.

The spelling of 19829082901 in words is "nineteen billion, eight hundred twenty-nine million, eighty-two thousand, nine hundred one".

Divisors: 1 15803 1254767 19829082901