Search a number
-
+
20652892 = 22131761383
BaseRepresentation
bin100111011001…
…0001101011100
31102212021102221
41032302031130
520241343032
62014355124
7340355341
oct116621534
942767387
1020652892
1110726907
126abbaa4
134381660
142a587c8
151c2e597
hex13b235c

20652892 has 48 divisors (see below), whose sum is σ = 41997312. Its totient is φ = 8801280.

The previous prime is 20652883. The next prime is 20652893. The reversal of 20652892 is 29825602.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20652893) 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, 53733 + ... + 54115.

It is an arithmetic number, because the mean of its divisors is an integer number (874944).

Almost surely, 220652892 is an apocalyptic number.

It is an amenable number.

20652892 is an abundant number, since it is smaller than the sum of its proper divisors (21344420).

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

20652892 is a wasteful number, since it uses less digits than its factorization.

20652892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 478 (or 476 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 20652892 is about 4544.5453017876. The cubic root of 20652892 is about 274.3638939366.

The spelling of 20652892 in words is "twenty million, six hundred fifty-two thousand, eight hundred ninety-two".

Divisors: 1 2 4 13 17 26 34 52 61 68 122 221 244 383 442 766 793 884 1037 1532 1586 2074 3172 4148 4979 6511 9958 13022 13481 19916 23363 26044 26962 46726 53924 84643 93452 169286 303719 338572 397171 607438 794342 1214876 1588684 5163223 10326446 20652892