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20010212612 = 22132316730947
BaseRepresentation
bin10010101000101100…
…111001110100000100
31220122112202010022122
4102220230321310010
5311440103300422
613105332145112
71305605000165
oct225054716404
956575663278
1020010212612
1185392749a5
123a65468198
131b6b8421c0
14d7b7c376c
157c1ad6d42
hex4a8b39d04

20010212612 has 24 divisors (see below), whose sum is σ = 39351189696. Its totient is φ = 8833939488.

The previous prime is 20010212611. The next prime is 20010212623. The reversal of 20010212612 is 21621201002.

It is not an unprimeable number, because it can be changed into a prime (20010212611) 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, 8364278 + ... + 8366669.

It is an arithmetic number, because the mean of its divisors is an integer number (1639632904).

Almost surely, 220010212612 is an apocalyptic number.

It is an amenable number.

20010212612 is a deficient number, since it is larger than the sum of its proper divisors (19340977084).

20010212612 is a wasteful number, since it uses less digits than its factorization.

20010212612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16730987 (or 16730985 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 20010212612 its reverse (21621201002), we get a palindrome (41631413614).

The spelling of 20010212612 in words is "twenty billion, ten million, two hundred twelve thousand, six hundred twelve".

Divisors: 1 2 4 13 23 26 46 52 92 299 598 1196 16730947 33461894 66923788 217502311 384811781 435004622 769623562 870009244 1539247124 5002553153 10005106306 20010212612