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20302738175 = 521867434981
BaseRepresentation
bin10010111010001000…
…110011001011111111
31221101221011221221202
4102322020303023333
5313040000110200
613154342050115
71316056266326
oct227210631377
957357157852
1020302738175
118679403765
123b2741993b
131bb7323b55
14da85ad0bd
157dc61b1d5
hex4ba2332ff

20302738175 has 12 divisors (see below), whose sum is σ = 25188937656. Its totient is φ = 16233453600.

The previous prime is 20302738139. The next prime is 20302738199. The reversal of 20302738175 is 57183720302.

It is not a de Polignac number, because 20302738175 - 212 = 20302734079 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 170816 + ... + 264165.

It is an arithmetic number, because the mean of its divisors is an integer number (2099078138).

Almost surely, 220302738175 is an apocalyptic number.

20302738175 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

20302738175 is a deficient number, since it is larger than the sum of its proper divisors (4886199481).

20302738175 is a wasteful number, since it uses less digits than its factorization.

20302738175 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 436858 (or 436853 counting only the distinct ones).

The product of its (nonzero) digits is 70560, while the sum is 38.

The spelling of 20302738175 in words is "twenty billion, three hundred two million, seven hundred thirty-eight thousand, one hundred seventy-five".

Divisors: 1 5 25 1867 9335 46675 434981 2174905 10874525 812109527 4060547635 20302738175