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2321669879 = 139139911939
BaseRepresentation
bin1000101001100001…
…1101111011110111
312222210122001100022
42022120131323313
514223321414004
61022213235355
7111350603564
oct21230357367
95883561308
102321669879
11a91581a41
12549632b5b
132accc1679
141804ad86b
15d8c522be
hex8a61def7

2321669879 has 8 divisors (see below), whose sum is σ = 2340240000. Its totient is φ = 2303126712.

The previous prime is 2321669851. The next prime is 2321669891. The reversal of 2321669879 is 9789661232.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-2321669879 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2321669879.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2321669809) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 188492 + ... + 200430.

It is an arithmetic number, because the mean of its divisors is an integer number (292530000).

Almost surely, 22321669879 is an apocalyptic number.

2321669879 is a deficient number, since it is larger than the sum of its proper divisors (18570121).

2321669879 is a wasteful number, since it uses less digits than its factorization.

2321669879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13477.

The product of its digits is 1959552, while the sum is 53.

The square root of 2321669879 is about 48183.7096849132. The cubic root of 2321669879 is about 1324.1387314203.

The spelling of 2321669879 in words is "two billion, three hundred twenty-one million, six hundred sixty-nine thousand, eight hundred seventy-nine".

Divisors: 1 139 1399 11939 194461 1659521 16702661 2321669879