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210012223031 = 1325762859091
BaseRepresentation
bin1100001110010110110…
…1000011011000110111
3202002002010001022110122
43003211231003120313
511420101112114111
6240251150442155
721113204304422
oct3034555033067
9662063038418
10210012223031
118107a474596
123485080335b
1316a5b6c8cc0
14a243b069b9
1556e2448cdb
hex30e5b43637

210012223031 has 8 divisors (see below), whose sum is σ = 227047040304. Its totient is φ = 193103124480.

The previous prime is 210012223021. The next prime is 210012223039. The reversal of 210012223031 is 130322210012.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-210012223031 is a prime.

It is a super-2 number, since 2×2100122230312 (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 (210012223039) 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, 31426205 + ... + 31432886.

It is an arithmetic number, because the mean of its divisors is an integer number (28380880038).

Almost surely, 2210012223031 is an apocalyptic number.

210012223031 is a deficient number, since it is larger than the sum of its proper divisors (17034817273).

210012223031 is a wasteful number, since it uses less digits than its factorization.

210012223031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62859361.

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

Adding to 210012223031 its reverse (130322210012), we get a palindrome (340334433043).

The spelling of 210012223031 in words is "two hundred ten billion, twelve million, two hundred twenty-three thousand, thirty-one".

Divisors: 1 13 257 3341 62859091 817168183 16154786387 210012223031