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20334404448 = 253270605571
BaseRepresentation
bin10010111100000001…
…100110001101100000
31221111010202202220200
4102330001212031200
5313121101420243
613201432505200
71316622404661
oct227401461540
957433682820
1020334404448
118695272036
123b35b4b200
131bc0a603a7
14dac893368
157e02c3ad3
hex4bc066360

20334404448 has 36 divisors (see below), whose sum is σ = 57825963468. Its totient is φ = 6778134720.

The previous prime is 20334404417. The next prime is 20334404449. The reversal of 20334404448 is 84440443302.

20334404448 is a `hidden beast` number, since 203 + 3 + 4 + 4 + 0 + 4 + 448 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

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 (20334404449) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 35302498 + ... + 35303073.

It is an arithmetic number, because the mean of its divisors is an integer number (1606276763).

Almost surely, 220334404448 is an apocalyptic number.

It is an amenable number.

20334404448 is an abundant number, since it is smaller than the sum of its proper divisors (37491559020).

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

20334404448 is a wasteful number, since it uses less digits than its factorization.

20334404448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70605587 (or 70605576 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 36.

The spelling of 20334404448 in words is "twenty billion, three hundred thirty-four million, four hundred four thousand, four hundred forty-eight".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 32 36 48 72 96 144 288 70605571 141211142 211816713 282422284 423633426 564844568 635450139 847266852 1129689136 1270900278 1694533704 2259378272 2541800556 3389067408 5083601112 6778134816 10167202224 20334404448