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20030321299 = 73709387007
BaseRepresentation
bin10010101001111001…
…100111001010010011
31220200221120202020211
4102221321213022103
5312010230240144
613111331144551
71306240631122
oct225171471223
956627522224
1020030321299
11854965994a
123a70145157
131b72a62c31
14d80339ab9
157c375a034
hex4a9e67293

20030321299 has 8 divisors (see below), whose sum is σ = 20333400320. Its totient is φ = 19728017856.

The previous prime is 20030321243. The next prime is 20030321321. The reversal of 20030321299 is 99212303002.

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 not a de Polignac number, because 20030321299 - 217 = 20030190227 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 20030321299.

It is not an unprimeable number, because it can be changed into a prime (20030321219) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 141747 + ... + 245260.

It is an arithmetic number, because the mean of its divisors is an integer number (2541675040).

Almost surely, 220030321299 is an apocalyptic number.

20030321299 is a deficient number, since it is larger than the sum of its proper divisors (303079021).

20030321299 is an equidigital number, since it uses as much as digits as its factorization.

20030321299 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 387789.

The product of its (nonzero) digits is 5832, while the sum is 31.

The spelling of 20030321299 in words is "twenty billion, thirty million, three hundred twenty-one thousand, two hundred ninety-nine".

Divisors: 1 73 709 51757 387007 28251511 274387963 20030321299