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20012314312 = 235942398971
BaseRepresentation
bin10010101000110100…
…111010111011001000
31220122200200220022101
4102220310322323020
5311441123024222
613105445203144
71305631602454
oct225064727310
956580626271
1020012314312
11853a47aa41
123a661004b4
131b6c0c9a03
14d7bbad664
157c1d9e927
hex4a8d3aec8

20012314312 has 16 divisors (see below), whose sum is σ = 38159074800. Its totient is φ = 9836561040.

The previous prime is 20012314297. The next prime is 20012314327. The reversal of 20012314312 is 21341321002.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (20012314297) and next prime (20012314327).

It is a self number, because there is not a number n which added to its sum of digits gives 20012314312.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21199014 + ... + 21199957.

It is an arithmetic number, because the mean of its divisors is an integer number (2384942175).

Almost surely, 220012314312 is an apocalyptic number.

It is an amenable number.

20012314312 is a deficient number, since it is larger than the sum of its proper divisors (18146760488).

20012314312 is a wasteful number, since it uses less digits than its factorization.

20012314312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42399036 (or 42399032 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 20012314312 its reverse (21341321002), we get a palindrome (41353635314).

The spelling of 20012314312 in words is "twenty billion, twelve million, three hundred fourteen thousand, three hundred twelve".

Divisors: 1 2 4 8 59 118 236 472 42398971 84797942 169595884 339191768 2501539289 5003078578 10006157156 20012314312