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20000211012 = 2233792344141
BaseRepresentation
bin10010101000000110…
…110000000001000100
31220121211220222201000
4102220012300001010
5311430023223022
613104333533300
71305423663045
oct225006600104
956554828630
1020000211012
118533663611
123a62044230
131b6974c9b2
14d7a33c8cc
157c0cad6ac
hex4a81b0044

20000211012 has 48 divisors (see below), whose sum is σ = 52508780800. Its totient is φ = 6582345120.

The previous prime is 20000211001. The next prime is 20000211019. The reversal of 20000211012 is 21011200002.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 20000210985 and 20000211003.

It is not an unprimeable number, because it can be changed into a prime (20000211019) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1163539 + ... + 1180602.

Almost surely, 220000211012 is an apocalyptic number.

It is an amenable number.

20000211012 is an abundant number, since it is smaller than the sum of its proper divisors (32508569788).

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

20000211012 is a wasteful number, since it uses less digits than its factorization.

20000211012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2344233 (or 2344225 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 20000211012 its reverse (21011200002), we get a palindrome (41011411014).

The spelling of 20000211012 in words is "twenty billion, two hundred eleven thousand, twelve".

Divisors: 1 2 3 4 6 9 12 18 27 36 54 79 108 158 237 316 474 711 948 1422 2133 2844 4266 8532 2344141 4688282 7032423 9376564 14064846 21097269 28129692 42194538 63291807 84389076 126583614 185187139 253167228 370374278 555561417 740748556 1111122834 1666684251 2222245668 3333368502 5000052753 6666737004 10000105506 20000211012