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19306269748 = 2241117721157
BaseRepresentation
bin10001111110101111…
…100100110000110100
31211211111011010020201
4101332233210300310
5304014401112443
612511424210244
71252266404503
oct217657446064
954744133221
1019306269748
118207982237
1238a9769984
131a88a5226c
14d1210083a
1577edd634d
hex47ebe4c34

19306269748 has 12 divisors (see below), whose sum is σ = 34610020452. Its totient is φ = 9417692480.

The previous prime is 19306269739. The next prime is 19306269757. The reversal of 19306269748 is 84796260391.

It is an interprime number because it is at equal distance from previous prime (19306269739) and next prime (19306269757).

It can be written as a sum of positive squares in 2 ways, for example, as 4611496464 + 14694773284 = 67908^2 + 121222^2 .

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 58860415 + ... + 58860742.

It is an arithmetic number, because the mean of its divisors is an integer number (2884168371).

Almost surely, 219306269748 is an apocalyptic number.

It is an amenable number.

19306269748 is a deficient number, since it is larger than the sum of its proper divisors (15303750704).

19306269748 is a wasteful number, since it uses less digits than its factorization.

19306269748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117721202 (or 117721200 counting only the distinct ones).

The product of its (nonzero) digits is 3919104, while the sum is 55.

The spelling of 19306269748 in words is "nineteen billion, three hundred six million, two hundred sixty-nine thousand, seven hundred forty-eight".

Divisors: 1 2 4 41 82 164 117721157 235442314 470884628 4826567437 9653134874 19306269748