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4248540869 = 31352126053
BaseRepresentation
bin1111110100111011…
…1001011011000101
3101222002101020102112
43331032321123011
532200111301434
61541324550405
7210166000346
oct37516713305
911862336375
104248540869
111890210701
129a69b2405
13529272c11
142c43700cd
1519cebbdce
hexfd3b96c5

4248540869 has 8 divisors (see below), whose sum is σ = 4270459032. Its totient is φ = 4226676480.

The previous prime is 4248540859. The next prime is 4248540883. The reversal of 4248540869 is 9680458424.

4248540869 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 57532225 + 4191008644 = 7585^2 + 64738^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-4248540869 is a prime.

It is a super-2 number, since 2×42485408692 = 36100199031126550322, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4248540859) 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, 150047 + ... + 176099.

It is an arithmetic number, because the mean of its divisors is an integer number (533807379).

Almost surely, 24248540869 is an apocalyptic number.

It is an amenable number.

4248540869 is a deficient number, since it is larger than the sum of its proper divisors (21918163).

4248540869 is a wasteful number, since it uses less digits than its factorization.

4248540869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26887.

The product of its (nonzero) digits is 2211840, while the sum is 50.

The square root of 4248540869 is about 65180.8320674107. The cubic root of 4248540869 is about 1619.6205061651.

The spelling of 4248540869 in words is "four billion, two hundred forty-eight million, five hundred forty thousand, eight hundred sixty-nine".

Divisors: 1 313 521 26053 163073 8154589 13573613 4248540869