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7421345801 = 17436549753
BaseRepresentation
bin1101110100101100…
…01100000000001001
3201011012120102120022
412322112030000021
5110144331031201
63224225110225
7351623253452
oct67226140011
921135512508
107421345801
113169179a41
121531488375
139136ac39c
145058ba129
152d67e741b
hex1ba58c009

7421345801 has 4 divisors (see below), whose sum is σ = 7857895572. Its totient is φ = 6984796032.

The previous prime is 7421345779. The next prime is 7421345809. The reversal of 7421345801 is 1085431247.

7421345801 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4212010000 + 3209335801 = 64900^2 + 56651^2 .

It is a cyclic number.

It is not a de Polignac number, because 7421345801 - 226 = 7354236937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7421345809) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 218274860 + ... + 218274893.

It is an arithmetic number, because the mean of its divisors is an integer number (1964473893).

Almost surely, 27421345801 is an apocalyptic number.

It is an amenable number.

7421345801 is a deficient number, since it is larger than the sum of its proper divisors (436549771).

7421345801 is a wasteful number, since it uses less digits than its factorization.

7421345801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 436549770.

The product of its (nonzero) digits is 26880, while the sum is 35.

The square root of 7421345801 is about 86147.2332753641. The cubic root of 7421345801 is about 1950.5670760116.

The spelling of 7421345801 in words is "seven billion, four hundred twenty-one million, three hundred forty-five thousand, eight hundred one".

Divisors: 1 17 436549753 7421345801