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212023013231 = 1092797695447
BaseRepresentation
bin1100010101110110001…
…1100110111101101111
3202021021020201001001202
43011131203212331233
511433210342410411
6241222501000115
721214061606501
oct3053543467557
9667236631052
10212023013231
1181a11510a77
12351120b303b
1316cbc1807a3
14a394badd71
1557adc3d83b
hex315d8e6f6f

212023013231 has 8 divisors (see below), whose sum is σ = 214044985440. Its totient is φ = 210002437728.

The previous prime is 212023013197. The next prime is 212023013243. The reversal of 212023013231 is 132310320212.

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 212023013231 - 210 = 212023012207 is a prime.

It is a super-2 number, since 2×2120230132312 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212023019231) 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, 42851 + ... + 652596.

It is an arithmetic number, because the mean of its divisors is an integer number (26755623180).

Almost surely, 2212023013231 is an apocalyptic number.

212023013231 is a deficient number, since it is larger than the sum of its proper divisors (2021972209).

212023013231 is a wasteful number, since it uses less digits than its factorization.

212023013231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 698353.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 212023013231 its reverse (132310320212), we get a palindrome (344333333443).

The spelling of 212023013231 in words is "two hundred twelve billion, twenty-three million, thirteen thousand, two hundred thirty-one".

Divisors: 1 109 2797 304873 695447 75803723 1945165259 212023013231