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20027592 = 23321321397
BaseRepresentation
bin100110001100…
…1100011001000
31101200111200200
41030121203020
520111340332
61553132200
7332142324
oct114314310
941614620
1020027592
111033a032
12685a060
1341c2b60
142934984
151b5917c
hex13198c8

20027592 has 48 divisors (see below), whose sum is σ = 58416540. Its totient is φ = 6162048.

The previous prime is 20027591. The next prime is 20027597. The reversal of 20027592 is 29572002.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 19660356 + 367236 = 4434^2 + 606^2 .

It is a super-2 number, since 2×200275922 = 802208882636928, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20027591) 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, 9763 + ... + 11634.

Almost surely, 220027592 is an apocalyptic number.

It is an amenable number.

20027592 is an abundant number, since it is smaller than the sum of its proper divisors (38388948).

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

20027592 is a wasteful number, since it uses less digits than its factorization.

20027592 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21422 (or 21415 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 27.

The square root of 20027592 is about 4475.2197711397. The cubic root of 20027592 is about 271.5665313178.

Adding to 20027592 its reverse (29572002), we get a palindrome (49599594).

The spelling of 20027592 in words is "twenty million, twenty-seven thousand, five hundred ninety-two".

Divisors: 1 2 3 4 6 8 9 12 13 18 24 26 36 39 52 72 78 104 117 156 234 312 468 936 21397 42794 64191 85588 128382 171176 192573 256764 278161 385146 513528 556322 770292 834483 1112644 1540584 1668966 2225288 2503449 3337932 5006898 6675864 10013796 20027592