Search a number
-
+
5021172 = 22321310729
BaseRepresentation
bin10011001001110111110100
3100110002202100
4103021313310
52241134142
6255342100
760451662
oct23116764
910402670
105021172
11291a532
121821930
13106a610
14949c32
15692b4c
hex4c9df4

5021172 has 36 divisors (see below), whose sum is σ = 13670020. Its totient is φ = 1544832.

The previous prime is 5021143. The next prime is 5021173. The reversal of 5021172 is 2711205.

It can be written as a sum of positive squares in 2 ways, for example, as 2178576 + 2842596 = 1476^2 + 1686^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5021173) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4897 + ... + 5832.

Almost surely, 25021172 is an apocalyptic number.

5021172 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

5021172 is an abundant number, since it is smaller than the sum of its proper divisors (8648848).

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

5021172 is a wasteful number, since it uses less digits than its factorization.

5021172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10752 (or 10747 counting only the distinct ones).

The product of its (nonzero) digits is 140, while the sum is 18.

The square root of 5021172 is about 2240.7971795769. The cubic root of 5021172 is about 171.2386122038.

Adding to 5021172 its reverse (2711205), we get a palindrome (7732377).

The spelling of 5021172 in words is "five million, twenty-one thousand, one hundred seventy-two".

Divisors: 1 2 3 4 6 9 12 13 18 26 36 39 52 78 117 156 234 468 10729 21458 32187 42916 64374 96561 128748 139477 193122 278954 386244 418431 557908 836862 1255293 1673724 2510586 5021172