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53855130 = 2357317809
BaseRepresentation
bin1100110101110…
…0001110011010
310202100010100110
43031130032122
5102241331010
65202145150
71222522020
oct315341632
9122303313
1053855130
112844417a
12160521b6
13b208054
14721c710
154adc120
hex335c39a

53855130 has 64 divisors (see below), whose sum is σ = 148366080. Its totient is φ = 12255744.

The previous prime is 53855129. The next prime is 53855143. The reversal of 53855130 is 3155835.

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

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 66166 + ... + 66974.

It is an arithmetic number, because the mean of its divisors is an integer number (2318220).

Almost surely, 253855130 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53855130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74183040).

53855130 is an abundant number, since it is smaller than the sum of its proper divisors (94510950).

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

53855130 is a wasteful number, since it uses less digits than its factorization.

53855130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1143.

The product of its (nonzero) digits is 9000, while the sum is 30.

The square root of 53855130 is about 7338.6054533542. The cubic root of 53855130 is about 377.6380034302.

The spelling of 53855130 in words is "fifty-three million, eight hundred fifty-five thousand, one hundred thirty".

Divisors: 1 2 3 5 6 7 10 14 15 21 30 35 42 70 105 210 317 634 809 951 1585 1618 1902 2219 2427 3170 4045 4438 4755 4854 5663 6657 8090 9510 11095 11326 12135 13314 16989 22190 24270 28315 33285 33978 56630 66570 84945 169890 256453 512906 769359 1282265 1538718 1795171 2564530 3590342 3846795 5385513 7693590 8975855 10771026 17951710 26927565 53855130