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19349501230 = 252693718511
BaseRepresentation
bin10010000001010100…
…011111010100101110
31211221111111111200201
4102001110133110232
5304111433014410
612520010544114
71253333022013
oct220124372456
954844444621
1019349501230
11822a31a734
12390013803a
131a949aa917
14d17b5570a
15783ac583a
hex48151f52e

19349501230 has 16 divisors (see below), whose sum is σ = 34842083904. Its totient is φ = 7736915680.

The previous prime is 19349501209. The next prime is 19349501233. The reversal of 19349501230 is 3210594391.

It is a self number, because there is not a number n which added to its sum of digits gives 19349501230.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19349501233) 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, 332326 + ... + 386185.

It is an arithmetic number, because the mean of its divisors is an integer number (2177630244).

Almost surely, 219349501230 is an apocalyptic number.

19349501230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

19349501230 is a deficient number, since it is larger than the sum of its proper divisors (15492582674).

19349501230 is a wasteful number, since it uses less digits than its factorization.

19349501230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 721211.

The product of its (nonzero) digits is 29160, while the sum is 37.

The spelling of 19349501230 in words is "nineteen billion, three hundred forty-nine million, five hundred one thousand, two hundred thirty".

Divisors: 1 2 5 10 2693 5386 13465 26930 718511 1437022 3592555 7185110 1934950123 3869900246 9674750615 19349501230