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54510145423 = 291879660187
BaseRepresentation
bin110010110001000011…
…101100111110001111
312012200220110022000221
4302301003230332033
51343114044123143
641012553332211
73636545406526
oct626103547617
9165626408027
1054510145423
1121132613068
12a693407067
1351a9289326
1428d171b4bd
1516407d92ed
hexcb10ecf8f

54510145423 has 4 divisors (see below), whose sum is σ = 56389805640. Its totient is φ = 52630485208.

The previous prime is 54510145421. The next prime is 54510145441. The reversal of 54510145423 is 32454101545.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32454101545 = 56490820309.

It is a cyclic number.

It is not a de Polignac number, because 54510145423 - 21 = 54510145421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54510145421) 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, 939830065 + ... + 939830122.

It is an arithmetic number, because the mean of its divisors is an integer number (14097451410).

Almost surely, 254510145423 is an apocalyptic number.

54510145423 is a deficient number, since it is larger than the sum of its proper divisors (1879660217).

54510145423 is a wasteful number, since it uses less digits than its factorization.

54510145423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1879660216.

The product of its (nonzero) digits is 48000, while the sum is 34.

Adding to 54510145423 its reverse (32454101545), we get a palindrome (86964246968).

The spelling of 54510145423 in words is "fifty-four billion, five hundred ten million, one hundred forty-five thousand, four hundred twenty-three".

Divisors: 1 29 1879660187 54510145423