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54129423 = 3192151331
BaseRepresentation
bin1100111001111…
…1001100001111
310202212001121110
43032133030033
5102324120143
65212103103
71225043505
oct316371417
9122761543
1054129423
1128611267
1216164a93
13b2a2b5a
147290675
154b43533
hex339f30f

54129423 has 24 divisors (see below), whose sum is σ = 76907136. Its totient is φ = 33858000.

The previous prime is 54129407. The next prime is 54129433. The reversal of 54129423 is 32492145.

It is not a de Polignac number, because 54129423 - 24 = 54129407 is a prime.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54129403) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 163368 + ... + 163698.

It is an arithmetic number, because the mean of its divisors is an integer number (3204464).

Almost surely, 254129423 is an apocalyptic number.

54129423 is a deficient number, since it is larger than the sum of its proper divisors (22777713).

54129423 is a wasteful number, since it uses less digits than its factorization.

54129423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 523 (or 504 counting only the distinct ones).

The product of its digits is 8640, while the sum is 30.

The square root of 54129423 is about 7357.2700779569. The cubic root of 54129423 is about 378.2780421225.

The spelling of 54129423 in words is "fifty-four million, one hundred twenty-nine thousand, four hundred twenty-three".

Divisors: 1 3 19 57 151 331 361 453 993 1083 2869 6289 8607 18867 49981 54511 119491 149943 163533 358473 949639 2848917 18043141 54129423