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2130205205412 = 223259172366817
BaseRepresentation
bin11110111111111010000…
…111111110001110100100
321112122102122220121111100
4132333322013332032210
5234400130013033122
64310334110240100
7306621320326644
oct36777207761644
97478378817440
102130205205412
11751462338869
122a4a214b6030
13125b53ac660b
14751612d4524
153a628d77aac
hex1effa1fe3a4

2130205205412 has 18 divisors (see below), whose sum is σ = 5384685380438. Its totient is φ = 710068401792.

The previous prime is 2130205205393. The next prime is 2130205205459. The reversal of 2130205205412 is 2145025020312.

2130205205412 is a `hidden beast` number, since 2 + 130 + 2 + 0 + 520 + 5 + 4 + 1 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1327435796736 + 802769408676 = 1152144^2 + 895974^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×21302052054122 (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 29586183373 + ... + 29586183444.

Almost surely, 22130205205412 is an apocalyptic number.

It is an amenable number.

2130205205412 is an abundant number, since it is smaller than the sum of its proper divisors (3254480175026).

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

2130205205412 is a wasteful number, since it uses less digits than its factorization.

2130205205412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59172366827 (or 59172366822 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The spelling of 2130205205412 in words is "two trillion, one hundred thirty billion, two hundred five million, two hundred five thousand, four hundred twelve".

Divisors: 1 2 3 4 6 9 12 18 36 59172366817 118344733634 177517100451 236689467268 355034200902 532551301353 710068401804 1065102602706 2130205205412