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52217001 = 337392617
BaseRepresentation
bin1100011100110…
…0010010101001
310122020220021000
43013030102221
5101331421001
65103105213
71202560104
oct307142251
9118226230
1052217001
1127525451
12155a2209
13aa83545
146d1373b
1548b6a86
hex31cc4a9

52217001 has 16 divisors (see below), whose sum is σ = 77492800. Its totient is φ = 34750944.

The previous prime is 52216999. The next prime is 52217029. The reversal of 52217001 is 10071225.

It is not a de Polignac number, because 52217001 - 21 = 52216999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52217201) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18645 + ... + 21261.

It is an arithmetic number, because the mean of its divisors is an integer number (4843300).

Almost surely, 252217001 is an apocalyptic number.

It is an amenable number.

52217001 is a deficient number, since it is larger than the sum of its proper divisors (25275799).

52217001 is a wasteful number, since it uses less digits than its factorization.

52217001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3365 (or 3359 counting only the distinct ones).

The product of its (nonzero) digits is 140, while the sum is 18.

The square root of 52217001 is about 7226.1331983295. The cubic root of 52217001 is about 373.7695993868.

Adding to 52217001 its reverse (10071225), we get a palindrome (62288226).

The spelling of 52217001 in words is "fifty-two million, two hundred seventeen thousand, one".

Divisors: 1 3 9 27 739 2217 2617 6651 7851 19953 23553 70659 1933963 5801889 17405667 52217001