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230100220021 = 7751279715649
BaseRepresentation
bin1101011001001100001…
…0101011100001110101
3210222221002011021220011
43112103002223201311
512232221124020041
6253412342140221
722424045412340
oct3262302534165
9728832137804
10230100220021
1189648636aa1
1238718121671
13189103a3c59
14b1cb977457
155ebac97e81
hex35930ab875

230100220021 has 16 divisors (see below), whose sum is σ = 263432819200. Its totient is φ = 196883136000.

The previous prime is 230100219997. The next prime is 230100220069. The reversal of 230100220021 is 120022001032.

230100220021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 230100220021 - 213 = 230100211829 is a prime.

It is a super-2 number, since 2×2301002200212 (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 230100219983 and 230100220010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230100520021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14696005 + ... + 14711653.

It is an arithmetic number, because the mean of its divisors is an integer number (16464551200).

Almost surely, 2230100220021 is an apocalyptic number.

It is an amenable number.

230100220021 is a deficient number, since it is larger than the sum of its proper divisors (33332599179).

230100220021 is a wasteful number, since it uses less digits than its factorization.

230100220021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19204.

The product of its (nonzero) digits is 48, while the sum is 13.

Adding to 230100220021 its reverse (120022001032), we get a palindrome (350122221053).

The spelling of 230100220021 in words is "two hundred thirty billion, one hundred million, two hundred twenty thousand, twenty-one".

Divisors: 1 7 751 2797 5257 15649 19579 109543 2100547 11752399 14703829 43770253 82266793 306391771 32871460003 230100220021