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20202013332 = 2234252124733
BaseRepresentation
bin10010110100001000…
…100100001010010100
31221010220122121110000
4102310020210022110
5312333203411312
613140343131300
71313424165024
oct226410441224
957126577400
1020202013332
118627567696
123ab9743b30
131b9c4b8457
14d9906da84
157d3871adc
hex4b4224294

20202013332 has 60 divisors (see below), whose sum is σ = 52835138356. Its totient is φ = 6731061120.

The previous prime is 20202013331. The next prime is 20202013373. The reversal of 20202013332 is 23331020202.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 322705296 + 19879308036 = 17964^2 + 140994^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20202013331) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 804438 + ... + 829170.

Almost surely, 220202013332 is an apocalyptic number.

It is an amenable number.

20202013332 is an abundant number, since it is smaller than the sum of its proper divisors (32633125024).

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

20202013332 is a wasteful number, since it uses less digits than its factorization.

20202013332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27270 (or 27259 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

Adding to 20202013332 its reverse (23331020202), we get a palindrome (43533033534).

The spelling of 20202013332 in words is "twenty billion, two hundred two million, thirteen thousand, three hundred thirty-two".

Divisors: 1 2 3 4 6 9 12 18 27 36 54 81 108 162 324 2521 5042 7563 10084 15126 22689 24733 30252 45378 49466 68067 74199 90756 98932 136134 148398 204201 222597 272268 296796 408402 445194 667791 816804 890388 1335582 2003373 2671164 4006746 8013492 62351893 124703786 187055679 249407572 374111358 561167037 748222716 1122334074 1683501111 2244668148 3367002222 5050503333 6734004444 10101006666 20202013332