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23112203033 = 73316605521
BaseRepresentation
bin10101100001100110…
…000011101100011001
32012122201200120012202
4111201212003230121
5334313210444113
614341222415545
71445512325063
oct254146035431
965581616182
1023112203033
119890266247
1245902915b5
1322443b61aa
141193778733
159040c5258
hex561983b19

23112203033 has 4 divisors (see below), whose sum is σ = 23428808628. Its totient is φ = 22795597440.

The previous prime is 23112203021. The next prime is 23112203089. The reversal of 23112203033 is 33030221132.

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

It can be written as a sum of positive squares in 2 ways, for example, as 16254210064 + 6857992969 = 127492^2 + 82813^2 .

It is a cyclic number.

It is not a de Polignac number, because 23112203033 - 24 = 23112203017 is a prime.

It is a super-2 number, since 2×231122030332 (a number of 22 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 = 23112202996 and 23112203014.

It is not an unprimeable number, because it can be changed into a prime (23112203333) 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, 158302688 + ... + 158302833.

It is an arithmetic number, because the mean of its divisors is an integer number (5857202157).

Almost surely, 223112203033 is an apocalyptic number.

It is an amenable number.

23112203033 is a deficient number, since it is larger than the sum of its proper divisors (316605595).

23112203033 is an equidigital number, since it uses as much as digits as its factorization.

23112203033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 316605594.

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 23112203033 its reverse (33030221132), we get a palindrome (56142424165).

The spelling of 23112203033 in words is "twenty-three billion, one hundred twelve million, two hundred three thousand, thirty-three".

Divisors: 1 73 316605521 23112203033