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45023930 = 257643199
BaseRepresentation
bin1010101111000…
…0001010111010
310010201110012222
42223300022322
543011231210
64245004042
71054461050
oct253601272
9103643188
1045023930
1123462166
12130b3622
1394354a3
145da01d0
153e45655
hex2af02ba

45023930 has 16 divisors (see below), whose sum is σ = 92620800. Its totient is φ = 15436752.

The previous prime is 45023929. The next prime is 45023941. The reversal of 45023930 is 3932054.

45023930 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 45023930.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 321530 + ... + 321669.

It is an arithmetic number, because the mean of its divisors is an integer number (5788800).

Almost surely, 245023930 is an apocalyptic number.

45023930 is an abundant number, since it is smaller than the sum of its proper divisors (47596870).

45023930 is a wasteful number, since it uses less digits than its factorization.

45023930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 643213.

The product of its (nonzero) digits is 3240, while the sum is 26.

The square root of 45023930 is about 6709.9873323278. The cubic root of 45023930 is about 355.7523685035.

Adding to 45023930 its reverse (3932054), we get a palindrome (48955984).

The spelling of 45023930 in words is "forty-five million, twenty-three thousand, nine hundred thirty".

Divisors: 1 2 5 7 10 14 35 70 643199 1286398 3215995 4502393 6431990 9004786 22511965 45023930