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23311422421 = 715112203973
BaseRepresentation
bin10101101101011110…
…000001001111010101
32020011121112221211121
4111231132001033111
5340220211004141
614413100403541
71453451551450
oct255536011725
966147487747
1023311422421
119982765771
124626b465b1
1322767590a1
1411b1dd6497
159168281d1
hex56d7813d5

23311422421 has 8 divisors (see below), whose sum is σ = 26659269504. Its totient is φ = 19967986320.

The previous prime is 23311422383. The next prime is 23311422467. The reversal of 23311422421 is 12422411332.

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

It is a cyclic number.

It is not a de Polignac number, because 23311422421 - 211 = 23311420373 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23311425421) 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 7 ways as a sum of consecutive naturals, for example, 1091410 + ... + 1112563.

It is an arithmetic number, because the mean of its divisors is an integer number (3332408688).

Almost surely, 223311422421 is an apocalyptic number.

It is an amenable number.

23311422421 is a deficient number, since it is larger than the sum of its proper divisors (3347847083).

23311422421 is a wasteful number, since it uses less digits than its factorization.

23311422421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2205491.

The product of its digits is 2304, while the sum is 25.

Adding to 23311422421 its reverse (12422411332), we get a palindrome (35733833753).

The spelling of 23311422421 in words is "twenty-three billion, three hundred eleven million, four hundred twenty-two thousand, four hundred twenty-one".

Divisors: 1 7 1511 10577 2203973 15427811 3330203203 23311422421