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52672686 = 2311798071
BaseRepresentation
bin1100100011101…
…1100010101110
310200010001100020
43020323202232
5101441011221
65120543010
71206465453
oct310734256
9120101306
1052672686
1127806850
1215781a66
13abb2a91
146dd182a
154956ac6
hex323b8ae

52672686 has 16 divisors (see below), whose sum is σ = 114922368. Its totient is φ = 15961400.

The previous prime is 52672657. The next prime is 52672687. The reversal of 52672686 is 68627625.

It is a super-4 number, since 4×526726864 (a number of 32 digits) contains 4444 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52672687) 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, 398970 + ... + 399101.

It is an arithmetic number, because the mean of its divisors is an integer number (7182648).

Almost surely, 252672686 is an apocalyptic number.

52672686 is an abundant number, since it is smaller than the sum of its proper divisors (62249682).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

52672686 is a wasteful number, since it uses less digits than its factorization.

52672686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 798087.

The product of its digits is 241920, while the sum is 42.

The square root of 52672686 is about 7257.5950562152. The cubic root of 52672686 is about 374.8537171665.

The spelling of 52672686 in words is "fifty-two million, six hundred seventy-two thousand, six hundred eighty-six".

Divisors: 1 2 3 6 11 22 33 66 798071 1596142 2394213 4788426 8778781 17557562 26336343 52672686