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232031212021 = 761543398623
BaseRepresentation
bin1101100000011000100…
…0110101000111110101
3211011220122122211221101
43120012020311013311
512300144442241041
6254332122050101
722522643521540
oct3300610650765
9734818584841
10232031212021
118a44962a954
1238b76949931
1318b5a46917b
14b3321cb857
156080578b31
hex36062351f5

232031212021 has 8 divisors (see below), whose sum is σ = 269525717504. Its totient is φ = 195623503920.

The previous prime is 232031212019. The next prime is 232031212069. The reversal of 232031212021 is 120212130232.

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

It is a cyclic number.

It is not a de Polignac number, because 232031212021 - 21 = 232031212019 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 232031212021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (232031212001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 271698885 + ... + 271699738.

It is an arithmetic number, because the mean of its divisors is an integer number (33690714688).

Almost surely, 2232031212021 is an apocalyptic number.

It is an amenable number.

232031212021 is a deficient number, since it is larger than the sum of its proper divisors (37494505483).

232031212021 is an equidigital number, since it uses as much as digits as its factorization.

232031212021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 543398691.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 232031212021 its reverse (120212130232), we get a palindrome (352243342253).

The spelling of 232031212021 in words is "two hundred thirty-two billion, thirty-one million, two hundred twelve thousand, twenty-one".

Divisors: 1 7 61 427 543398623 3803790361 33147316003 232031212021