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4047197293 = 17521456949
BaseRepresentation
bin1111000100111011…
…0101010001101101
3101110001111220222001
43301032311101231
531242040303133
61505333252301
7202202416006
oct36116652155
911401456861
104047197293
1117975a0257
1294b494091
134c66381c9
142a571c1ad
1518a49987d
hexf13b546d

4047197293 has 8 divisors (see below), whose sum is σ = 4293502200. Its totient is φ = 3801807360.

The previous prime is 4047197291. The next prime is 4047197299. The reversal of 4047197293 is 3927917404.

It can be written as a sum of positive squares in 4 ways, for example, as 163788804 + 3883408489 = 12798^2 + 62317^2 .

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 4047197293 - 21 = 4047197291 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4047197291) 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, 219618 + ... + 237331.

It is an arithmetic number, because the mean of its divisors is an integer number (536687775).

Almost surely, 24047197293 is an apocalyptic number.

It is an amenable number.

4047197293 is a deficient number, since it is larger than the sum of its proper divisors (246304907).

4047197293 is a wasteful number, since it uses less digits than its factorization.

4047197293 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 457487.

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

The square root of 4047197293 is about 63617.5863500023. The cubic root of 4047197293 is about 1593.6200750208.

The spelling of 4047197293 in words is "four billion, forty-seven million, one hundred ninety-seven thousand, two hundred ninety-three".

Divisors: 1 17 521 8857 456949 7768133 238070429 4047197293