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23454451031 = 114745366443
BaseRepresentation
bin10101110101111111…
…101000010101010111
32020112120200120012112
4111311333220111113
5341013314413111
614435210141235
71460136354464
oct256577502527
966476616175
1023454451031
119a46476230
124666a2181b
13229a286abb
1411c6dc866b
1592417be8b
hex575fe8557

23454451031 has 8 divisors (see below), whose sum is σ = 26131071744. Its totient is φ = 20868563320.

The previous prime is 23454451003. The next prime is 23454451057. The reversal of 23454451031 is 13015445432.

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

It is not a de Polignac number, because 23454451031 - 26 = 23454450967 is a prime.

It is a super-2 number, since 2×234544510312 (a number of 22 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 (23454453031) 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, 22682705 + ... + 22683738.

It is an arithmetic number, because the mean of its divisors is an integer number (3266383968).

Almost surely, 223454451031 is an apocalyptic number.

23454451031 is a deficient number, since it is larger than the sum of its proper divisors (2676620713).

23454451031 is a wasteful number, since it uses less digits than its factorization.

23454451031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45366501.

The product of its (nonzero) digits is 28800, while the sum is 32.

Adding to 23454451031 its reverse (13015445432), we get a palindrome (36469896463).

The spelling of 23454451031 in words is "twenty-three billion, four hundred fifty-four million, four hundred fifty-one thousand, thirty-one".

Divisors: 1 11 47 517 45366443 499030873 2132222821 23454451031