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20238112624 = 248101156139
BaseRepresentation
bin10010110110010010…
…010001011101110000
31221020102120122100211
4102312102101131300
5312421424100444
613144112553504
71314343055542
oct226622213560
957212518324
1020238112624
118645983614
123b09852894
131ba6b17692
14d9db89692
157d6b02c34
hex4b6491770

20238112624 has 20 divisors (see below), whose sum is σ = 39216434680. Its totient is φ = 10117742400.

The previous prime is 20238112619. The next prime is 20238112673. The reversal of 20238112624 is 42621183202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51547 + ... + 207685.

It is an arithmetic number, because the mean of its divisors is an integer number (1960821734).

Almost surely, 220238112624 is an apocalyptic number.

It is an amenable number.

20238112624 is a deficient number, since it is larger than the sum of its proper divisors (18978322056).

20238112624 is a wasteful number, since it uses less digits than its factorization.

20238112624 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164248 (or 164242 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 31.

Adding to 20238112624 its reverse (42621183202), we get a palindrome (62859295826).

The spelling of 20238112624 in words is "twenty billion, two hundred thirty-eight million, one hundred twelve thousand, six hundred twenty-four".

Divisors: 1 2 4 8 16 8101 16202 32404 64808 129616 156139 312278 624556 1249112 2498224 1264882039 2529764078 5059528156 10119056312 20238112624