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20000102012 = 221119101236867
BaseRepresentation
bin10010101000000110…
…010101011001111100
31220121211201110011222
4102220012111121330
5311430011231022
613104331332512
71305423030212
oct225006253174
956554643158
1020000102012
118533599730
123a61bb1138
131b697121b7
14d7a310cb2
157c0c8b242
hex4a819567c

20000102012 has 48 divisors (see below), whose sum is σ = 40589700480. Its totient is φ = 8527176000.

The previous prime is 20000101991. The next prime is 20000102027. The reversal of 20000102012 is 21020100002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33998 + ... + 202869.

It is an arithmetic number, because the mean of its divisors is an integer number (845618760).

Almost surely, 220000102012 is an apocalyptic number.

20000102012 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

20000102012 is an abundant number, since it is smaller than the sum of its proper divisors (20589598468).

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

20000102012 is a wasteful number, since it uses less digits than its factorization.

20000102012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 237002 (or 237000 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 8.

Adding to 20000102012 its reverse (21020100002), we get a palindrome (41020202014).

The spelling of 20000102012 in words is "twenty billion, one hundred two thousand, twelve".

Divisors: 1 2 4 11 19 22 38 44 76 101 202 209 404 418 836 1111 1919 2222 3838 4444 7676 21109 42218 84436 236867 473734 947468 2605537 4500473 5211074 9000946 10422148 18001892 23923567 47847134 49505203 95694268 99010406 198020812 263159237 454547773 526318474 909095546 1052636948 1818191092 5000025503 10000051006 20000102012