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7399420417 = 28126332457
BaseRepresentation
bin1101110010000101…
…00011001000000001
3201002200022111121001
412321002203020001
5110123222423132
63222123132001
7351236015164
oct67102431001
921080274531
107399420417
113157864094
121526074001
1390bca379c
14502a0dadb
152d4915ce7
hex1b90a3201

7399420417 has 4 divisors (see below), whose sum is σ = 7425753156. Its totient is φ = 7373087680.

The previous prime is 7399420409. The next prime is 7399420447. The reversal of 7399420417 is 7140249937.

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 4512614976 + 2886805441 = 67176^2 + 53729^2 .

It is a cyclic number.

It is not a de Polignac number, because 7399420417 - 23 = 7399420409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7399420447) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13165948 + ... + 13166509.

It is an arithmetic number, because the mean of its divisors is an integer number (1856438289).

Almost surely, 27399420417 is an apocalyptic number.

It is an amenable number.

7399420417 is a deficient number, since it is larger than the sum of its proper divisors (26332739).

7399420417 is a wasteful number, since it uses less digits than its factorization.

7399420417 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26332738.

The product of its (nonzero) digits is 381024, while the sum is 46.

The square root of 7399420417 is about 86019.8838467014. The cubic root of 7399420417 is about 1948.6442837947.

The spelling of 7399420417 in words is "seven billion, three hundred ninety-nine million, four hundred twenty thousand, four hundred seventeen".

Divisors: 1 281 26332457 7399420417