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64030933 = 173370121
BaseRepresentation
bin1111010001000…
…0100011010101
311110111002221001
43310100203111
5112342442213
610204223301
71405153051
oct364204325
9143432831
1064030933
113316442a
121953ab31
131035b935
14870ac61
15594c1dd
hex3d108d5

64030933 has 4 divisors (see below), whose sum is σ = 64401228. Its totient is φ = 63660640.

The previous prime is 64030909. The next prime is 64030951. The reversal of 64030933 is 33903046.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 33903046 = 216951523.

It can be written as a sum of positive squares in 2 ways, for example, as 59861169 + 4169764 = 7737^2 + 2042^2 .

It is a cyclic number.

It is not a de Polignac number, because 64030933 - 213 = 64022741 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64030033) 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, 184888 + ... + 185233.

It is an arithmetic number, because the mean of its divisors is an integer number (16100307).

Almost surely, 264030933 is an apocalyptic number.

It is an amenable number.

64030933 is a deficient number, since it is larger than the sum of its proper divisors (370295).

64030933 is a wasteful number, since it uses less digits than its factorization.

64030933 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 370294.

The product of its (nonzero) digits is 5832, while the sum is 28.

The square root of 64030933 is about 8001.9330789504. The cubic root of 64030933 is about 400.0644333703.

Adding to 64030933 its reverse (33903046), we get a palindrome (97933979).

The spelling of 64030933 in words is "sixty-four million, thirty thousand, nine hundred thirty-three".

Divisors: 1 173 370121 64030933