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20652896 = 2511232551
BaseRepresentation
bin100111011001…
…0001101100000
31102212021110002
41032302031200
520241343041
62014355132
7340355345
oct116621540
942767402
1020652896
1110726910
126abbaa8
134381664
142a587cc
151c2e59b
hex13b2360

20652896 has 48 divisors (see below), whose sum is σ = 46303488. Its totient is φ = 8976000.

The previous prime is 20652893. The next prime is 20652899. The reversal of 20652896 is 69825602.

It is an interprime number because it is at equal distance from previous prime (20652893) and next prime (20652899).

It is a super-2 number, since 2×206528962 = 853084226373632, which contains 22 as substring.

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 (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6821 + ... + 9371.

It is an arithmetic number, because the mean of its divisors is an integer number (964656).

Almost surely, 220652896 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 20652896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23151744).

20652896 is an abundant number, since it is smaller than the sum of its proper divisors (25650592).

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

20652896 is a wasteful number, since it uses less digits than its factorization.

20652896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2595 (or 2587 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 38.

The square root of 20652896 is about 4544.5457418756. The cubic root of 20652896 is about 274.3639116493.

The spelling of 20652896 in words is "twenty million, six hundred fifty-two thousand, eight hundred ninety-six".

Divisors: 1 2 4 8 11 16 22 23 32 44 46 88 92 176 184 253 352 368 506 736 1012 2024 2551 4048 5102 8096 10204 20408 28061 40816 56122 58673 81632 112244 117346 224488 234692 448976 469384 645403 897952 938768 1290806 1877536 2581612 5163224 10326448 20652896