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20012303192 = 2372609136973
BaseRepresentation
bin10010101000110100…
…111000001101011000
31220122200200100001112
4102220310320031120
5311441122200232
613105445035452
71305631525160
oct225064701530
956580610045
1020012303192
11853a472652
123a660b5b88
131b6c0c492b
14d7bba95a0
157c1d9b4b2
hex4a8d38358

20012303192 has 32 divisors (see below), whose sum is σ = 42900256800. Its totient is φ = 8573351424.

The previous prime is 20012303111. The next prime is 20012303249. The reversal of 20012303192 is 29130321002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77618 + ... + 214590.

It is an arithmetic number, because the mean of its divisors is an integer number (1340633025).

Almost surely, 220012303192 is an apocalyptic number.

It is an amenable number.

20012303192 is an abundant number, since it is smaller than the sum of its proper divisors (22887953608).

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

20012303192 is a wasteful number, since it uses less digits than its factorization.

20012303192 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139595 (or 139591 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 20012303192 its reverse (29130321002), we get a palindrome (49142624194).

The spelling of 20012303192 in words is "twenty billion, twelve million, three hundred three thousand, one hundred ninety-two".

Divisors: 1 2 4 7 8 14 28 56 2609 5218 10436 18263 20872 36526 73052 136973 146104 273946 547892 958811 1095784 1917622 3835244 7670488 357362557 714725114 1429450228 2501537899 2858900456 5003075798 10006151596 20012303192