Search a number
-
+
55160160 = 25351131337
BaseRepresentation
bin1101001001101…
…0110101100000
310211210102111220
43102122311200
5103110111120
65250135040
71236565536
oct322326540
9124712456
1055160160
1129155710
1216581480
13b574063
14747c156
154c98b40
hex349ad60

55160160 has 192 divisors, whose sum is σ = 196245504. Its totient is φ = 12902400.

The previous prime is 55160143. The next prime is 55160179. The reversal of 55160160 is 6106155.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 55160160.

It is a congruent 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, 163512 + ... + 163848.

It is an arithmetic number, because the mean of its divisors is an integer number (1022112).

Almost surely, 255160160 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 55160160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (98122752).

55160160 is an abundant number, since it is smaller than the sum of its proper divisors (141085344).

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

55160160 is a wasteful number, since it uses less digits than its factorization.

55160160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 397 (or 389 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 24.

The square root of 55160160 is about 7426.9886225845. The cubic root of 55160160 is about 380.6640282617.

The spelling of 55160160 in words is "fifty-five million, one hundred sixty thousand, one hundred sixty".