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20022032 = 2431371091
BaseRepresentation
bin100110001100…
…0001100010000
31101200020001202
41030120030100
520111201112
61553050332
7332120162
oct114301420
941606052
1020022032
1110335938
1268569a8
1341c0474
142932932
151b576c2
hex1318310

20022032 has 40 divisors (see below), whose sum is σ = 41164032. Its totient is φ = 9417600.

The previous prime is 20022017. The next prime is 20022043. The reversal of 20022032 is 23022002.

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, 17807 + ... + 18897.

Almost surely, 220022032 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 20022032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20582016).

20022032 is an abundant number, since it is smaller than the sum of its proper divisors (21142000).

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

20022032 is a wasteful number, since it uses less digits than its factorization.

20022032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1167 (or 1161 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 11.

The square root of 20022032 is about 4474.5985294773. The cubic root of 20022032 is about 271.5413984967.

Adding to 20022032 its reverse (23022002), we get a palindrome (43044034).

The spelling of 20022032 in words is "twenty million, twenty-two thousand, thirty-two".

Divisors: 1 2 4 8 16 31 37 62 74 124 148 248 296 496 592 1091 1147 2182 2294 4364 4588 8728 9176 17456 18352 33821 40367 67642 80734 135284 161468 270568 322936 541136 645872 1251377 2502754 5005508 10011016 20022032