Search a number
-
+
55042848 = 2533719479
BaseRepresentation
bin1101000111111…
…0001100100000
310211120110121000
43101332030200
5103042332343
65243432000
71235566530
oct321761440
9124513530
1055042848
1129085563
1216525600
13b532843
14744b4c0
154c73ed3
hex347e320

55042848 has 192 divisors, whose sum is σ = 193536000. Its totient is φ = 14867712.

The previous prime is 55042847. The next prime is 55042849. The reversal of 55042848 is 84824055.

It is an interprime number because it is at equal distance from previous prime (55042847) and next prime (55042849).

It is a super-2 number, since 2×550428482 = 6059430231902208, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (55042843) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 114673 + ... + 115151.

It is an arithmetic number, because the mean of its divisors is an integer number (1008000).

Almost surely, 255042848 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 55042848, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (96768000).

55042848 is an abundant number, since it is smaller than the sum of its proper divisors (138493152).

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

55042848 is a wasteful number, since it uses less digits than its factorization.

55042848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 524 (or 510 counting only the distinct ones).

The product of its (nonzero) digits is 51200, while the sum is 36.

The square root of 55042848 is about 7419.0867362500. The cubic root of 55042848 is about 380.3939773549.

The spelling of 55042848 in words is "fifty-five million, forty-two thousand, eight hundred forty-eight".