Search a number
51055050 = 23521073181
BaseRepresentation
bin1100001011000…
…0100111001010
310120001212100210
43002300213022
5101032230200
65022141550
71156650354
oct302604712
9116055323
1051055050
1126901462
12151218b6
13a7676b7
154737650
hex30b09ca

51055050 has 48 divisors (see below), whose sum is σ = 127840032. Its totient is φ = 13483200.

The previous prime is 51055031. The next prime is 51055057. The reversal of 51055050 is 5055015.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (51055057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14460 + ... + 17640.

It is an arithmetic number, because the mean of its divisors is an integer number (2663334).

Almost surely, 251055050 is an apocalyptic number.

51055050 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 51055050, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63920016).

51055050 is an abundant number, since it is smaller than the sum of its proper divisors (76784982).

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

51055050 is a wasteful number, since it uses less digits than its factorization.

51055050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3303 (or 3298 counting only the distinct ones).

The product of its (nonzero) digits is 625, while the sum is 21.

The square root of 51055050 is about 7145.2816599488. The cubic root of 51055050 is about 370.9763597039.

The spelling of 51055050 in words is "fifty-one million, fifty-five thousand, fifty".