Search a number
-
+
20767292 = 2271359967
BaseRepresentation
bin100111100111…
…0001000111100
31110002002100222
41033032020330
520304023132
62021040512
7341343020
oct117161074
943062328
1020767292
11107a4857
126b56138
1343c1750
142a88380
151c53412
hex13ce23c

20767292 has 48 divisors (see below), whose sum is σ = 45534720. Its totient is φ = 8068032.

The previous prime is 20767289. The next prime is 20767297. The reversal of 20767292 is 29276702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20767297) 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 15 ways as a sum of consecutive naturals, for example, 20993 + ... + 21959.

It is an arithmetic number, because the mean of its divisors is an integer number (948640).

Almost surely, 220767292 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 20767292, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22767360).

20767292 is an abundant number, since it is smaller than the sum of its proper divisors (24767428).

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

20767292 is a wasteful number, since it uses less digits than its factorization.

20767292 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1050 (or 1048 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 35.

The square root of 20767292 is about 4557.1144378872. The cubic root of 20767292 is about 274.8695447356.

The spelling of 20767292 in words is "twenty million, seven hundred sixty-seven thousand, two hundred ninety-two".

Divisors: 1 2 4 7 13 14 26 28 52 59 91 118 182 236 364 413 767 826 967 1534 1652 1934 3068 3868 5369 6769 10738 12571 13538 21476 25142 27076 50284 57053 87997 114106 175994 228212 351988 399371 741689 798742 1483378 1597484 2966756 5191823 10383646 20767292