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21333514696 = 231347292861
BaseRepresentation
bin10011110111100100…
…111001100111001000
32001001202202211111221
4103313210321213020
5322142334432241
613444523131424
71353443611564
oct236744714710
961052684457
1021333514696
11905823838a
124174673b74
13201ca485a0
14106544c6a4
1584cd7b5d1
hex4f79399c8

21333514696 has 48 divisors (see below), whose sum is σ = 44013802140. Its totient is φ = 9636639360.

The previous prime is 21333514687. The next prime is 21333514721. The reversal of 21333514696 is 69641533312.

It can be written as a sum of positive squares in 2 ways, for example, as 16560086596 + 4773428100 = 128686^2 + 69090^2 .

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 183306 + ... + 276166.

Almost surely, 221333514696 is an apocalyptic number.

21333514696 is a gapful number since it is divisible by the number (26) 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 21333514696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22006901070).

21333514696 is an abundant number, since it is smaller than the sum of its proper divisors (22680287444).

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

21333514696 is a wasteful number, since it uses less digits than its factorization.

21333514696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92974 (or 92923 counting only the distinct ones).

The product of its digits is 349920, while the sum is 43.

The spelling of 21333514696 in words is "twenty-one billion, three hundred thirty-three million, five hundred fourteen thousand, six hundred ninety-six".

Divisors: 1 2 4 8 13 26 47 52 94 104 188 376 611 1222 2209 2444 4418 4888 8836 17672 28717 57434 92861 114868 185722 229736 371444 742888 1207193 2414386 4364467 4828772 8728934 9657544 17457868 34915736 56738071 113476142 205129949 226952284 410259898 453904568 820519796 1641039592 2666689337 5333378674 10666757348 21333514696