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37313081 = 132870237
BaseRepresentation
bin1000111001010…
…1101000111001
32121012200220222
42032111220321
534023004311
63411425425
7632104331
oct216255071
977180828
1037313081
111a075963
12105b5275
137965860
144d540c1
153420adb
hex2395a39

37313081 has 4 divisors (see below), whose sum is σ = 40183332. Its totient is φ = 34442832.

The previous prime is 37313077. The next prime is 37313083. The reversal of 37313081 is 18031373.

37313081 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 12313081 + 25000000 = 3509^2 + 5000^2 .

It is a cyclic number.

It is not a de Polignac number, because 37313081 - 22 = 37313077 is a prime.

It is a super-2 number, since 2×373130812 = 2784532027425122, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 37313081.

It is not an unprimeable number, because it can be changed into a prime (37313083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1435106 + ... + 1435131.

It is an arithmetic number, because the mean of its divisors is an integer number (10045833).

Almost surely, 237313081 is an apocalyptic number.

It is an amenable number.

37313081 is a deficient number, since it is larger than the sum of its proper divisors (2870251).

37313081 is a wasteful number, since it uses less digits than its factorization.

37313081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2870250.

The product of its (nonzero) digits is 1512, while the sum is 26.

The square root of 37313081 is about 6108.4434187443. The cubic root of 37313081 is about 334.1594162919.

The spelling of 37313081 in words is "thirty-seven million, three hundred thirteen thousand, eighty-one".

Divisors: 1 13 2870237 37313081