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42253201 = 239317657
BaseRepresentation
bin1010000100101…
…1101110010001
32221111200111101
42201023232101
541304100301
64105344401
71022101114
oct241135621
987450441
1042253201
112193a501
1212198101
1389a52c3
14587c57b
153a99701
hex284bb91

42253201 has 4 divisors (see below), whose sum is σ = 42273252. Its totient is φ = 42233152.

The previous prime is 42253199. The next prime is 42253213. The reversal of 42253201 is 10235224.

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 2563201 + 39690000 = 1601^2 + 6300^2 .

It is a cyclic number.

It is not a de Polignac number, because 42253201 - 21 = 42253199 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42253241) 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, 6436 + ... + 11221.

It is an arithmetic number, because the mean of its divisors is an integer number (10568313).

Almost surely, 242253201 is an apocalyptic number.

It is an amenable number.

42253201 is a deficient number, since it is larger than the sum of its proper divisors (20051).

42253201 is a wasteful number, since it uses less digits than its factorization.

42253201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20050.

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 42253201 is about 6500.2462261056. The cubic root of 42253201 is about 348.2997840651.

Adding to 42253201 its reverse (10235224), we get a palindrome (52488425).

The spelling of 42253201 in words is "forty-two million, two hundred fifty-three thousand, two hundred one".

Divisors: 1 2393 17657 42253201