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45668929 = 109418981
BaseRepresentation
bin1010111000110…
…1101001000001
310011221012222211
42232031221001
543142401204
64310502121
71063115365
oct256155101
9104835884
1045668929
1123862819
1213364941
1395ccc47
1460cb2a5
154021804
hex2b8da41

45668929 has 4 divisors (see below), whose sum is σ = 46088020. Its totient is φ = 45249840.

The previous prime is 45668927. The next prime is 45668933. The reversal of 45668929 is 92986654.

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 37699600 + 7969329 = 6140^2 + 2823^2 .

It is a cyclic number.

It is not a de Polignac number, because 45668929 - 21 = 45668927 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45668927) 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, 209382 + ... + 209599.

It is an arithmetic number, because the mean of its divisors is an integer number (11522005).

Almost surely, 245668929 is an apocalyptic number.

It is an amenable number.

45668929 is a deficient number, since it is larger than the sum of its proper divisors (419091).

45668929 is a wasteful number, since it uses less digits than its factorization.

45668929 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 419090.

The product of its digits is 933120, while the sum is 49.

The square root of 45668929 is about 6757.8790311754. The cubic root of 45668929 is about 357.4431200360.

The spelling of 45668929 in words is "forty-five million, six hundred sixty-eight thousand, nine hundred twenty-nine".

Divisors: 1 109 418981 45668929