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52449407 = 235938651
BaseRepresentation
bin1100100000010…
…1000001111111
310122200201001122
43020011001333
5101411340112
65112101155
71204545503
oct310050177
9118621048
1052449407
112767401a
12156947bb
13ab3526a
146d74303
154910872
hex320507f

52449407 has 8 divisors (see below), whose sum is σ = 55658880. Its totient is φ = 49317400.

The previous prime is 52449359. The next prime is 52449451. The reversal of 52449407 is 70494425.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 52449407 - 26 = 52449343 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 (52449497) 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, 17969 + ... + 20682.

It is an arithmetic number, because the mean of its divisors is an integer number (6957360).

Almost surely, 252449407 is an apocalyptic number.

52449407 is a deficient number, since it is larger than the sum of its proper divisors (3209473).

52449407 is a wasteful number, since it uses less digits than its factorization.

52449407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38733.

The product of its (nonzero) digits is 40320, while the sum is 35.

The square root of 52449407 is about 7242.1962828965. The cubic root of 52449407 is about 374.3232999028.

The spelling of 52449407 in words is "fifty-two million, four hundred forty-nine thousand, four hundred seven".

Divisors: 1 23 59 1357 38651 888973 2280409 52449407