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20002012212 = 22371379231859
BaseRepresentation
bin10010101000001101…
…100111110000110100
31220121222022111111010
4102220031213300310
5311431003342322
613104440312220
71305445204260
oct225015476064
956558274433
1020002012212
118534683906
123a62772670
131b69c307b0
14d7a68b0a0
157c101720c
hex4a8367c34

20002012212 has 96 divisors (see below), whose sum is σ = 58169036800. Its totient is φ = 5208458112.

The previous prime is 20002012189. The next prime is 20002012243. The reversal of 20002012212 is 21221020002.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 29662 + ... + 202197.

Almost surely, 220002012212 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20002012212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29084518400).

20002012212 is an abundant number, since it is smaller than the sum of its proper divisors (38167024588).

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

20002012212 is a wasteful number, since it uses less digits than its factorization.

20002012212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231965 (or 231963 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 20002012212 its reverse (21221020002), we get a palindrome (41223032214).

The spelling of 20002012212 in words is "twenty billion, two million, twelve thousand, two hundred twelve".

Divisors: 1 2 3 4 6 7 12 13 14 21 26 28 39 42 52 78 79 84 91 156 158 182 237 273 316 364 474 546 553 948 1027 1092 1106 1659 2054 2212 3081 3318 4108 6162 6636 7189 12324 14378 21567 28756 43134 86268 231859 463718 695577 927436 1391154 1623013 2782308 3014167 3246026 4869039 6028334 6492052 9042501 9738078 12056668 18085002 18316861 19476156 21099169 36170004 36633722 42198338 54950583 63297507 73267444 84396676 109901166 126595014 128218027 219802332 238119193 253190028 256436054 384654081 476238386 512872108 714357579 769308162 952476772 1428715158 1538616324 1666834351 2857430316 3333668702 5000503053 6667337404 10001006106 20002012212