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200210123231 = 670032988077
BaseRepresentation
bin1011101001110101110…
…1000000100111011111
3201010202222200001101022
42322131131000213133
511240012242420411
6231550353434355
720315251653116
oct2723535004737
9633688601338
10200210123231
11779aa438968
1232975b6b9bb
1315b58a0c151
149993d7ac7d
15531bb2cedb
hex2e9d7409df

200210123231 has 4 divisors (see below), whose sum is σ = 200213178312. Its totient is φ = 200207068152.

The previous prime is 200210123167. The next prime is 200210123251. The reversal of 200210123231 is 132321012002.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 200210123231 - 26 = 200210123167 is a prime.

It is a super-2 number, since 2×2002101232312 (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 (200210123251) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1427036 + ... + 1561041.

It is an arithmetic number, because the mean of its divisors is an integer number (50053294578).

Almost surely, 2200210123231 is an apocalyptic number.

200210123231 is a deficient number, since it is larger than the sum of its proper divisors (3055081).

200210123231 is an equidigital number, since it uses as much as digits as its factorization.

200210123231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3055080.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 200210123231 its reverse (132321012002), we get a palindrome (332531135233).

The spelling of 200210123231 in words is "two hundred billion, two hundred ten million, one hundred twenty-three thousand, two hundred thirty-one".

Divisors: 1 67003 2988077 200210123231