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131220233002002 = 2321870038833667
BaseRepresentation
bin11101110101100000010111…
…011000000001110000010010
3122012121112100122200101122210
4131311200113120001300102
5114144403014122031002
61143025424242012550
736432230462116524
oct3565402730016022
9565545318611583
10131220233002002
11388a1208697181
121287343a647156
13582b0268b8311
142459143901a14
1510285156c796c
hex775817601c12

131220233002002 has 8 divisors (see below), whose sum is σ = 262440466004016. Its totient is φ = 43740077667332.

The previous prime is 131220233001941. The next prime is 131220233002039. The reversal of 131220233002002 is 200200332022131.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

131220233002002 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 131220233002002.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10935019416828 + ... + 10935019416839.

It is an arithmetic number, because the mean of its divisors is an integer number (32805058250502).

Almost surely, 2131220233002002 is an apocalyptic number.

131220233002002 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

131220233002002 is a wasteful number, since it uses less digits than its factorization.

131220233002002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21870038833672.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 131220233002002 its reverse (200200332022131), we get a palindrome (331420565024133).

The spelling of 131220233002002 in words is "one hundred thirty-one trillion, two hundred twenty billion, two hundred thirty-three million, two thousand, two".

Divisors: 1 2 3 6 21870038833667 43740077667334 65610116501001 131220233002002