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54916428 = 22371733779
BaseRepresentation
bin1101000101111…
…1010101001100
310211100001011210
43101133111030
5103024311203
65241014420
71234532130
oct321372514
9124301153
1054916428
1128aa9586
1216484410
13b4ba138
1474173c0
154c4b803
hex345f54c

54916428 has 48 divisors (see below), whose sum is σ = 147329280. Its totient is φ = 15595584.

The previous prime is 54916391. The next prime is 54916457. The reversal of 54916428 is 82461945.

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, 12643 + ... + 16421.

It is an arithmetic number, because the mean of its divisors is an integer number (3069360).

Almost surely, 254916428 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 54916428, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73664640).

54916428 is an abundant number, since it is smaller than the sum of its proper divisors (92412852).

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

54916428 is a wasteful number, since it uses less digits than its factorization.

54916428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3966 (or 3964 counting only the distinct ones).

The product of its digits is 69120, while the sum is 39.

The square root of 54916428 is about 7410.5619220137. The cubic root of 54916428 is about 380.1025300433.

The spelling of 54916428 in words is "fifty-four million, nine hundred sixteen thousand, four hundred twenty-eight".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 84 173 346 519 692 1038 1211 2076 2422 3633 3779 4844 7266 7558 11337 14532 15116 22674 26453 45348 52906 79359 105812 158718 317436 653767 1307534 1961301 2615068 3922602 4576369 7845204 9152738 13729107 18305476 27458214 54916428