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20296245600 = 25335217311783
BaseRepresentation
bin10010111001110000…
…000010000101100000
31221101110222002211000
4102321300002011200
5313031314324400
613153550552000
71315650145461
oct227160020540
957343862730
1020296245600
1186757797a4
123b25208600
131bb5b8c8a7
14da779cd68
157dbc87600
hex4b9c02160

20296245600 has 576 divisors, whose sum is σ = 80274862080. Its totient is φ = 4926873600.

The previous prime is 20296245589. The next prime is 20296245601. The reversal of 20296245600 is 654269202.

20296245600 is a `hidden beast` number, since 2 + 0 + 2 + 9 + 6 + 2 + 45 + 600 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20296245601) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 11382309 + ... + 11384091.

It is an arithmetic number, because the mean of its divisors is an integer number (139366080).

Almost surely, 220296245600 is an apocalyptic number.

20296245600 is a gapful number since it is divisible by the number (20) 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 20296245600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40137431040).

20296245600 is an abundant number, since it is smaller than the sum of its proper divisors (59978616480).

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

20296245600 is a wasteful number, since it uses less digits than its factorization.

20296245600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1860 (or 1841 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The spelling of 20296245600 in words is "twenty billion, two hundred ninety-six million, two hundred forty-five thousand, six hundred".