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52142001 = 317380667
BaseRepresentation
bin1100011011100…
…1111110110001
310122010002101020
43012321332301
5101322021001
65101330053
71202125332
oct306717661
9118102336
1052142001
112748406a
1215566929
13aa58372
146cd4289
15489e736
hex31b9fb1

52142001 has 4 divisors (see below), whose sum is σ = 69522672. Its totient is φ = 34761332.

The previous prime is 52141997. The next prime is 52142039. The reversal of 52142001 is 10024125.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 52142001 - 22 = 52141997 is a prime.

It is not an unprimeable number, because it can be changed into a prime (52142071) 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, 8690331 + ... + 8690336.

It is an arithmetic number, because the mean of its divisors is an integer number (17380668).

Almost surely, 252142001 is an apocalyptic number.

It is an amenable number.

52142001 is a deficient number, since it is larger than the sum of its proper divisors (17380671).

52142001 is a wasteful number, since it uses less digits than its factorization.

52142001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17380670.

The product of its (nonzero) digits is 80, while the sum is 15.

The square root of 52142001 is about 7220.9418360765. The cubic root of 52142001 is about 373.5905634956.

Adding to 52142001 its reverse (10024125), we get a palindrome (62166126).

The spelling of 52142001 in words is "fifty-two million, one hundred forty-two thousand, one".

Divisors: 1 3 17380667 52142001