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2440631131 = 23373284489
BaseRepresentation
bin1001000101111001…
…0001001101011011
320022002110220111121
42101132101031123
514444300144011
61042103110111
7114324010441
oct22136211533
96262426447
102440631131
111042744324
12581442337
132cb843843
141921d8b91
15e43eee71
hex9179135b

2440631131 has 8 divisors (see below), whose sum is σ = 2553582240. Its totient is φ = 2328249792.

The previous prime is 2440631117. The next prime is 2440631161. The reversal of 2440631131 is 1311360442.

2440631131 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 2440631131 - 211 = 2440629083 is a prime.

It is a super-2 number, since 2×24406311312 = 11913360635212678322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2440631096 and 2440631105.

It is not an unprimeable number, because it can be changed into a prime (2440631161) 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, 133666 + ... + 150823.

It is an arithmetic number, because the mean of its divisors is an integer number (319197780).

Almost surely, 22440631131 is an apocalyptic number.

2440631131 is a deficient number, since it is larger than the sum of its proper divisors (112951109).

2440631131 is a wasteful number, since it uses less digits than its factorization.

2440631131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 284885.

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 2440631131 is about 49402.7441646717. The cubic root of 2440631131 is about 1346.3791643613.

Adding to 2440631131 its reverse (1311360442), we get a palindrome (3751991573).

The spelling of 2440631131 in words is "two billion, four hundred forty million, six hundred thirty-one thousand, one hundred thirty-one".

Divisors: 1 23 373 8579 284489 6543247 106114397 2440631131