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210030001031 = 1761202536163
BaseRepresentation
bin1100001110011011000…
…0110111101110000111
3202002010100111112022002
43003212300313232013
511420120140013111
6240253023455515
721113511360344
oct3034660675607
9662110445262
10210030001031
1181089507454
123485675759b
1316a622b1c26
14a2462137cb
1556e3cab63b
hex30e6c37b87

210030001031 has 8 divisors (see below), whose sum is σ = 226030359024. Its totient is φ = 194434715520.

The previous prime is 210030000959. The next prime is 210030001067. The reversal of 210030001031 is 130100030012.

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-210030001031 is a prime.

It is a super-2 number, since 2×2100300010312 (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210030001631) 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, 101267045 + ... + 101269118.

It is an arithmetic number, because the mean of its divisors is an integer number (28253794878).

Almost surely, 2210030001031 is an apocalyptic number.

210030001031 is a deficient number, since it is larger than the sum of its proper divisors (16000357993).

210030001031 is a wasteful number, since it uses less digits than its factorization.

210030001031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202536241.

The product of its (nonzero) digits is 18, while the sum is 11.

Adding to 210030001031 its reverse (130100030012), we get a palindrome (340130031043).

The spelling of 210030001031 in words is "two hundred ten billion, thirty million, one thousand, thirty-one".

Divisors: 1 17 61 1037 202536163 3443114771 12354705943 210030001031