Search a number
-
+
55210799 = 721126751
BaseRepresentation
bin1101001010011…
…1001100101111
310211212222222102
43102213030233
5103113221144
65251205315
71240166300
oct322471457
9124788872
1055210799
112918a766
12165a683b
13b591117
1474927a7
154ca8b4e
hex34a732f

55210799 has 6 divisors (see below), whose sum is σ = 64224864. Its totient is φ = 47323500.

The previous prime is 55210769. The next prime is 55210811. The reversal of 55210799 is 99701255.

It is a de Polignac number, because none of the positive numbers 2k-55210799 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55210739) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 563327 + ... + 563424.

It is an arithmetic number, because the mean of its divisors is an integer number (10704144).

Almost surely, 255210799 is an apocalyptic number.

55210799 is a deficient number, since it is larger than the sum of its proper divisors (9014065).

55210799 is a wasteful number, since it uses less digits than its factorization.

55210799 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1126765 (or 1126758 counting only the distinct ones).

The product of its (nonzero) digits is 28350, while the sum is 38.

The square root of 55210799 is about 7430.3969611320. The cubic root of 55210799 is about 380.7804803648.

The spelling of 55210799 in words is "fifty-five million, two hundred ten thousand, seven hundred ninety-nine".

Divisors: 1 7 49 1126751 7887257 55210799