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23423344332431 = 971911264281553
BaseRepresentation
bin1010101001101101011000…
…00111100100111010001111
310001221020202010210002222112
411110312230013210322033
511032232002122114211
6121452311423534235
74635165210520151
oct524665407447217
9101836663702875
1023423344332431
11751086a25962a
12276372675a37b
13100ba72961714
145ad9a5838ad1
152a946564c88b
hex154dac1e4e8f

23423344332431 has 8 divisors (see below), whose sum is σ = 23788721720064. Its totient is φ = 23060495508480.

The previous prime is 23423344332419. The next prime is 23423344332449. The reversal of 23423344332431 is 13423344332432.

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-23423344332431 is a prime.

It is a super-2 number, since 2×234233443324312 (a number of 28 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 (23423344332461) 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, 632122250 + ... + 632159303.

It is an arithmetic number, because the mean of its divisors is an integer number (2973590215008).

Almost surely, 223423344332431 is an apocalyptic number.

23423344332431 is a deficient number, since it is larger than the sum of its proper divisors (365377387633).

23423344332431 is a wasteful number, since it uses less digits than its factorization.

23423344332431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1264281841.

The product of its digits is 1492992, while the sum is 41.

Adding to 23423344332431 its reverse (13423344332432), we get a palindrome (36846688664863).

Subtracting from 23423344332431 its reverse (13423344332432), we obtain a palindrome (9999999999999).

The spelling of 23423344332431 in words is "twenty-three trillion, four hundred twenty-three billion, three hundred forty-four million, three hundred thirty-two thousand, four hundred thirty-one".

Divisors: 1 97 191 18527 1264281553 122635310641 241477776623 23423344332431