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20200311032 = 23115319322441
BaseRepresentation
bin10010110100000010…
…000100100011111000
31221010210110010022212
4102310002010203320
5312332234423112
613140242434252
71313403545036
oct226402044370
957123403285
1020200311032
118626604730
123ab9062988
131b9c040685
14d98b49556
157d3637522
hex4b40848f8

20200311032 has 64 divisors (see below), whose sum is σ = 42318430560. Its totient is φ = 8961638400.

The previous prime is 20200311031. The next prime is 20200311037. The reversal of 20200311032 is 23011300202.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 20200310998 and 20200311016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20200311031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 888932 + ... + 911372.

Almost surely, 220200311032 is an apocalyptic number.

20200311032 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 20200311032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21159215280).

20200311032 is an abundant number, since it is smaller than the sum of its proper divisors (22118119528).

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

20200311032 is a wasteful number, since it uses less digits than its factorization.

20200311032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22704 (or 22700 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 20200311032 its reverse (23011300202), we get a palindrome (43211611234).

The spelling of 20200311032 in words is "twenty billion, two hundred million, three hundred eleven thousand, thirty-two".

Divisors: 1 2 4 8 11 22 44 53 88 106 193 212 386 424 583 772 1166 1544 2123 2332 4246 4664 8492 10229 16984 20458 22441 40916 44882 81832 89764 112519 179528 225038 246851 450076 493702 900152 987404 1189373 1974808 2378746 4331113 4757492 8662226 9514984 13083103 17324452 26166206 34648904 47642243 52332412 95284486 104664824 190568972 229548989 381137944 459097978 918195956 1836391912 2525038879 5050077758 10100155516 20200311032