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20041552 = 242947919
BaseRepresentation
bin100110001110…
…0111101010000
31101201012211201
41030130331100
520112312202
61553320544
7332231116
oct114347520
941635751
1020041552
1110349573
126866154
1341c930b
142939ab6
151b5d387
hex131cf50

20041552 has 40 divisors (see below), whose sum is σ = 41068800. Its totient is φ = 9459072.

The previous prime is 20041537. The next prime is 20041573. The reversal of 20041552 is 25514002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21349 + ... + 22267.

It is an arithmetic number, because the mean of its divisors is an integer number (1026720).

Almost surely, 220041552 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 20041552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20534400).

20041552 is an abundant number, since it is smaller than the sum of its proper divisors (21027248).

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

20041552 is a wasteful number, since it uses less digits than its factorization.

20041552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1003 (or 997 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 19.

The square root of 20041552 is about 4476.7791993798. The cubic root of 20041552 is about 271.6296140934.

Adding to 20041552 its reverse (25514002), we get a palindrome (45555554).

The spelling of 20041552 in words is "twenty million, forty-one thousand, five hundred fifty-two".

Divisors: 1 2 4 8 16 29 47 58 94 116 188 232 376 464 752 919 1363 1838 2726 3676 5452 7352 10904 14704 21808 26651 43193 53302 86386 106604 172772 213208 345544 426416 691088 1252597 2505194 5010388 10020776 20041552