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790227481 = 4119273841
BaseRepresentation
bin101111000110011…
…110101000011001
32001001221201022111
4233012132220121
53104244234411
6210225152321
725403552131
oct5706365031
92031851274
10790227481
1137607666a
121a078b6a1
13c7940a34
1476d43ac1
1549596721
hex2f19ea19

790227481 has 4 divisors (see below), whose sum is σ = 809501364. Its totient is φ = 770953600.

The previous prime is 790227443. The next prime is 790227521. The reversal of 790227481 is 184722097.

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 254721600 + 535505881 = 15960^2 + 23141^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-790227481 is a prime.

It is a super-2 number, since 2×7902274812 = 1248918943455210722, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (790267481) 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, 9636880 + ... + 9636961.

It is an arithmetic number, because the mean of its divisors is an integer number (202375341).

Almost surely, 2790227481 is an apocalyptic number.

It is an amenable number.

790227481 is a deficient number, since it is larger than the sum of its proper divisors (19273883).

790227481 is a wasteful number, since it uses less digits than its factorization.

790227481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19273882.

The product of its (nonzero) digits is 56448, while the sum is 40.

The square root of 790227481 is about 28110.9850592255. The cubic root of 790227481 is about 924.5222684306.

The spelling of 790227481 in words is "seven hundred ninety million, two hundred twenty-seven thousand, four hundred eighty-one".

Divisors: 1 41 19273841 790227481