Search a number
-
+
54768740 = 22513313673
BaseRepresentation
bin1101000011101…
…1010001100100
310211001112120212
43100323101210
5103010044430
65233514552
71233345425
oct320732144
9124045525
1054768740
1128a08624
1216412a58
13b467b50
1473b964c
154c1cb95
hex343b464

54768740 has 48 divisors (see below), whose sum is σ = 124441968. Its totient is φ = 20127744.

The previous prime is 54768737. The next prime is 54768767. The reversal of 54768740 is 4786745.

It can be written as a sum of positive squares in 8 ways, for example, as 23116864 + 31651876 = 4808^2 + 5626^2 .

It is a super-2 number, since 2×547687402 = 5999229762375200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 81044 + ... + 81716.

It is an arithmetic number, because the mean of its divisors is an integer number (2592541).

Almost surely, 254768740 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 54768740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62220984).

54768740 is an abundant number, since it is smaller than the sum of its proper divisors (69673228).

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

54768740 is a wasteful number, since it uses less digits than its factorization.

54768740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1008 (or 1006 counting only the distinct ones).

The product of its (nonzero) digits is 188160, while the sum is 41.

The square root of 54768740 is about 7400.5905169790. The cubic root of 54768740 is about 379.7614846710.

The spelling of 54768740 in words is "fifty-four million, seven hundred sixty-eight thousand, seven hundred forty".

Divisors: 1 2 4 5 10 13 20 26 52 65 130 260 313 626 673 1252 1346 1565 2692 3130 3365 4069 6260 6730 8138 8749 13460 16276 17498 20345 34996 40690 43745 81380 87490 174980 210649 421298 842596 1053245 2106490 2738437 4212980 5476874 10953748 13692185 27384370 54768740