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52790423 = 717547811
BaseRepresentation
bin1100100101100…
…0010010010111
310200100000211212
43021120102113
5102003243143
65123252035
71210465640
oct311302227
9120300755
1052790423
1127887254
121581a01b
13ac2454a
1470226c7
15497b918
hex3258497

52790423 has 16 divisors (see below), whose sum is σ = 64076544. Its totient is φ = 42456960.

The previous prime is 52790371. The next prime is 52790449. The reversal of 52790423 is 32409725.

It is a happy number.

It is not a de Polignac number, because 52790423 - 216 = 52724887 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 52790423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52790473) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 64688 + ... + 65498.

It is an arithmetic number, because the mean of its divisors is an integer number (4004784).

Almost surely, 252790423 is an apocalyptic number.

52790423 is a deficient number, since it is larger than the sum of its proper divisors (11286121).

52790423 is a wasteful number, since it uses less digits than its factorization.

52790423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1382.

The product of its (nonzero) digits is 15120, while the sum is 32.

The square root of 52790423 is about 7265.7018243250. The cubic root of 52790423 is about 375.1328074788.

The spelling of 52790423 in words is "fifty-two million, seven hundred ninety thousand, four hundred twenty-three".

Divisors: 1 7 17 119 547 811 3829 5677 9299 13787 65093 96509 443617 3105319 7541489 52790423