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52169217 = 317389739
BaseRepresentation
bin1100011100000…
…0101000000001
310122011110201020
43013000220001
5101323403332
65102100053
71202300562
oct307005001
9118143636
1052169217
11274a2561
121557a629
13aa67879
146d00169
1548a782c
hex31c0a01

52169217 has 4 divisors (see below), whose sum is σ = 69558960. Its totient is φ = 34779476.

The previous prime is 52169203. The next prime is 52169233. The reversal of 52169217 is 71296125.

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 52169217 - 26 = 52169153 is a prime.

It is not an unprimeable number, because it can be changed into a prime (52169017) 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, 8694867 + ... + 8694872.

It is an arithmetic number, because the mean of its divisors is an integer number (17389740).

Almost surely, 252169217 is an apocalyptic number.

It is an amenable number.

52169217 is a deficient number, since it is larger than the sum of its proper divisors (17389743).

52169217 is a wasteful number, since it uses less digits than its factorization.

52169217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17389742.

The product of its digits is 7560, while the sum is 33.

The square root of 52169217 is about 7222.8261089410. The cubic root of 52169217 is about 373.6555518739.

The spelling of 52169217 in words is "fifty-two million, one hundred sixty-nine thousand, two hundred seventeen".

Divisors: 1 3 17389739 52169217