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54268140 = 22357112739
BaseRepresentation
bin1100111100000…
…1000011101100
310210010002220010
43033001003230
5102343040030
65215053220
71226162103
oct317010354
9123102803
1054268140
11286a6503
1216211210
13b321034
1472c903a
154b6e6b0
hex33c10ec

54268140 has 48 divisors (see below), whose sum is σ = 154103040. Its totient is φ = 14266560.

The previous prime is 54268129. The next prime is 54268147. The reversal of 54268140 is 4186245.

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

It is a junction number, because it is equal to n+sod(n) for n = 54268098 and 54268107.

It is not an unprimeable number, because it can be changed into a prime (54268147) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2110 + ... + 10629.

It is an arithmetic number, because the mean of its divisors is an integer number (3210480).

Almost surely, 254268140 is an apocalyptic number.

It is an amenable number.

54268140 is an abundant number, since it is smaller than the sum of its proper divisors (99834900).

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

54268140 is a wasteful number, since it uses less digits than its factorization.

54268140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12822 (or 12820 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 30.

The square root of 54268140 is about 7366.6912518443. The cubic root of 54268140 is about 378.6009030943.

The spelling of 54268140 in words is "fifty-four million, two hundred sixty-eight thousand, one hundred forty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 71 142 213 284 355 426 710 852 1065 1420 2130 4260 12739 25478 38217 50956 63695 76434 127390 152868 191085 254780 382170 764340 904469 1808938 2713407 3617876 4522345 5426814 9044690 10853628 13567035 18089380 27134070 54268140