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392391053 = 1492633497
BaseRepresentation
bin10111011000110…
…110100110001101
31000100100112022222
4113120312212031
51300423003203
6102534145125
712503161145
oct2730664615
91010315288
10392391053
1119154922a
12ab4b21a5
13633a9172
143a183925
15246ae038
hex1763698d

392391053 has 4 divisors (see below), whose sum is σ = 395024700. Its totient is φ = 389757408.

The previous prime is 392390969. The next prime is 392391067. The reversal of 392391053 is 350193293.

It is a happy number.

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 123365449 + 269025604 = 11107^2 + 16402^2 .

It is a cyclic number.

It is not a de Polignac number, because 392391053 - 28 = 392390797 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 (392391073) 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, 1316600 + ... + 1316897.

It is an arithmetic number, because the mean of its divisors is an integer number (98756175).

Almost surely, 2392391053 is an apocalyptic number.

It is an amenable number.

392391053 is a deficient number, since it is larger than the sum of its proper divisors (2633647).

392391053 is a wasteful number, since it uses less digits than its factorization.

392391053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2633646.

The product of its (nonzero) digits is 21870, while the sum is 35.

The square root of 392391053 is about 19808.8629910957. The cubic root of 392391053 is about 732.1044254906.

The spelling of 392391053 in words is "three hundred ninety-two million, three hundred ninety-one thousand, fifty-three".

Divisors: 1 149 2633497 392391053