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45068237 = 97464621
BaseRepresentation
bin1010101111101…
…0111111001101
310010210200222222
42223322333031
543014140422
64245545125
71055034164
oct253727715
9103720888
1045068237
1123492485
12131151a5
13944c6c6
145db23db
153e53842
hex2afafcd

45068237 has 4 divisors (see below), whose sum is σ = 45532956. Its totient is φ = 44603520.

The previous prime is 45068227. The next prime is 45068239. The reversal of 45068237 is 73286054.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 73286054 = 236643027.

It can be written as a sum of positive squares in 2 ways, for example, as 17547721 + 27520516 = 4189^2 + 5246^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-45068237 is a prime.

It is a super-2 number, since 2×450682372 = 4062291972576338, 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 = 45068197 and 45068206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45068239) 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, 232214 + ... + 232407.

It is an arithmetic number, because the mean of its divisors is an integer number (11383239).

Almost surely, 245068237 is an apocalyptic number.

It is an amenable number.

45068237 is a deficient number, since it is larger than the sum of its proper divisors (464719).

45068237 is an equidigital number, since it uses as much as digits as its factorization.

45068237 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 464718.

The product of its (nonzero) digits is 40320, while the sum is 35.

The square root of 45068237 is about 6713.2880915390. The cubic root of 45068237 is about 355.8690261162.

The spelling of 45068237 in words is "forty-five million, sixty-eight thousand, two hundred thirty-seven".

Divisors: 1 97 464621 45068237