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20232244420 = 2253534995743
BaseRepresentation
bin10010110101111011…
…111000110011000100
31221020000112111200221
4102311323320303010
5312413423310140
613143343114124
71314242145223
oct226573706304
957200474627
1020232244420
118642635763
123b078a2944
131ba584167b
14d9d09ccba
157d634414a
hex4b5ef8cc4

20232244420 has 48 divisors (see below), whose sum is σ = 42700896000. Its totient is φ = 8052397056.

The previous prime is 20232244393. The next prime is 20232244427. The reversal of 20232244420 is 2444223202.

It is a super-2 number, since 2×202322444202 (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20232244427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3520069 + ... + 3525811.

It is an arithmetic number, because the mean of its divisors is an integer number (889602000).

Almost surely, 220232244420 is an apocalyptic number.

20232244420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20232244420 is an abundant number, since it is smaller than the sum of its proper divisors (22468651580).

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

20232244420 is a wasteful number, since it uses less digits than its factorization.

20232244420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6604 (or 6602 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 25.

Adding to 20232244420 its reverse (2444223202), we get a palindrome (22676467622).

The spelling of 20232244420 in words is "twenty billion, two hundred thirty-two million, two hundred forty-four thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 353 499 706 998 1412 1765 1996 2495 3530 4990 5743 7060 9980 11486 22972 28715 57430 114860 176147 352294 704588 880735 1761470 2027279 2865757 3522940 4054558 5731514 8109116 10136395 11463028 14328785 20272790 28657570 40545580 57315140 1011612221 2023224442 4046448884 5058061105 10116122210 20232244420