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52469397 = 331943311
BaseRepresentation
bin1100100000100…
…1111010010101
310122201201111000
43020021322111
5101413010042
65112333513
71204661001
oct310117225
9118651430
1052469397
1127688042
12156a4299
13ab413a6
146d7b701
15491674c
hex3209e95

52469397 has 8 divisors (see below), whose sum is σ = 77732480. Its totient is φ = 34979580.

The previous prime is 52469369. The next prime is 52469411. The reversal of 52469397 is 79396425.

It is a happy number.

It is not a de Polignac number, because 52469397 - 210 = 52468373 is a prime.

It is a super-3 number, since 3×524693973 (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52469297) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 971629 + ... + 971682.

It is an arithmetic number, because the mean of its divisors is an integer number (9716560).

Almost surely, 252469397 is an apocalyptic number.

It is an amenable number.

52469397 is a deficient number, since it is larger than the sum of its proper divisors (25263083).

52469397 is a wasteful number, since it uses less digits than its factorization.

52469397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1943320 (or 1943314 counting only the distinct ones).

The product of its digits is 408240, while the sum is 45.

The square root of 52469397 is about 7243.5762576230. The cubic root of 52469397 is about 374.3708490412.

The spelling of 52469397 in words is "fifty-two million, four hundred sixty-nine thousand, three hundred ninety-seven".

Divisors: 1 3 9 27 1943311 5829933 17489799 52469397