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10780600321 = 21794947499
BaseRepresentation
bin10100000101001001…
…01110100000000001
31000211022121020110101
422002210232200001
5134034313202241
64541425402401
7531103406431
oct120244564001
930738536411
1010780600321
114632405647
12210a499401
13102a63a25a
14743abc2c1
154316a1e31
hex28292e801

10780600321 has 4 divisors (see below), whose sum is σ = 10785550000. Its totient is φ = 10775650644.

The previous prime is 10780600307. The next prime is 10780600339. The reversal of 10780600321 is 12300608701.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-10780600321 is a prime.

It is a super-2 number, since 2×107806003212 (a number of 21 digits) contains 22 as substring.

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 10780600321.

It is not an unprimeable number, because it can be changed into a prime (10780600381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2471571 + ... + 2475928.

It is an arithmetic number, because the mean of its divisors is an integer number (2696387500).

Almost surely, 210780600321 is an apocalyptic number.

It is an amenable number.

10780600321 is a deficient number, since it is larger than the sum of its proper divisors (4949679).

10780600321 is an equidigital number, since it uses as much as digits as its factorization.

10780600321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4949678.

The product of its (nonzero) digits is 2016, while the sum is 28.

The spelling of 10780600321 in words is "ten billion, seven hundred eighty million, six hundred thousand, three hundred twenty-one".

Divisors: 1 2179 4947499 10780600321