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20026952 = 23112171217
BaseRepresentation
bin100110001100…
…1011001001000
31101200110210222
41030121121020
520111330302
61553125212
7332140421
oct114313110
941613728
1020026952
1110339600
126859808
1341c278a
142934648
151b58da2
hex1319648

20026952 has 48 divisors (see below), whose sum is σ = 43738380. Its totient is φ = 8560640.

The previous prime is 20026939. The next prime is 20026957. The reversal of 20026952 is 25962002.

It can be written as a sum of positive squares in 2 ways, for example, as 19945156 + 81796 = 4466^2 + 286^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20026957) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15848 + ... + 17064.

Almost surely, 220026952 is an apocalyptic number.

20026952 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20026952, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21869190).

20026952 is an abundant number, since it is smaller than the sum of its proper divisors (23711428).

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

20026952 is a wasteful number, since it uses less digits than its factorization.

20026952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1262 (or 1247 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 20026952 is about 4475.1482657003. The cubic root of 20026952 is about 271.5636385681.

Adding to 20026952 its reverse (25962002), we get a palindrome (45988954).

The spelling of 20026952 in words is "twenty million, twenty-six thousand, nine hundred fifty-two".

Divisors: 1 2 4 8 11 17 22 34 44 68 88 121 136 187 242 374 484 748 968 1217 1496 2057 2434 4114 4868 8228 9736 13387 16456 20689 26774 41378 53548 82756 107096 147257 165512 227579 294514 455158 589028 910316 1178056 1820632 2503369 5006738 10013476 20026952