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54811380 = 22351370271
BaseRepresentation
bin1101000100010…
…1101011110100
310211010201002010
43101011223310
5103012431010
65234444220
71233613641
oct321055364
9124121063
1054811380
1128a37668
1216433670
13b481390
1473cadc8
154c2a620
hex3445af4

54811380 has 48 divisors (see below), whose sum is σ = 165279744. Its totient is φ = 13491840.

The previous prime is 54811373. The next prime is 54811397. The reversal of 54811380 is 8311845.

54811380 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34356 + ... + 35915.

It is an arithmetic number, because the mean of its divisors is an integer number (3443328).

Almost surely, 254811380 is an apocalyptic number.

It is an amenable number.

54811380 is an abundant number, since it is smaller than the sum of its proper divisors (110468364).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

54811380 is a wasteful number, since it uses less digits than its factorization.

54811380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70296 (or 70294 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 30.

The square root of 54811380 is about 7403.4708076685. The cubic root of 54811380 is about 379.8600130723.

The spelling of 54811380 in words is "fifty-four million, eight hundred eleven thousand, three hundred eighty".

Divisors: 1 2 3 4 5 6 10 12 13 15 20 26 30 39 52 60 65 78 130 156 195 260 390 780 70271 140542 210813 281084 351355 421626 702710 843252 913523 1054065 1405420 1827046 2108130 2740569 3654092 4216260 4567615 5481138 9135230 10962276 13702845 18270460 27405690 54811380