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52672680 = 233555419
BaseRepresentation
bin1100100011101…
…1100010101000
310200010001100000
43020323202220
5101441011210
65120543000
71206465444
oct310734250
9120101300
1052672680
1127806845
1215781a60
13abb2a88
146dd1824
154956ac0
hex323b8a8

52672680 has 96 divisors (see below), whose sum is σ = 177559200. Its totient is φ = 14043456.

The previous prime is 52672657. The next prime is 52672687. The reversal of 52672680 is 8627625.

52672680 is a `hidden beast` number, since 526 + 72 + 68 + 0 = 666.

It is a super-2 number, since 2×526726802 = 5548822436764800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

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 23 ways as a sum of consecutive naturals, for example, 7011 + ... + 12429.

It is an arithmetic number, because the mean of its divisors is an integer number (1849575).

Almost surely, 252672680 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52672680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (88779600).

52672680 is an abundant number, since it is smaller than the sum of its proper divisors (124886520).

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

52672680 is a wasteful number, since it uses less digits than its factorization.

52672680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5445 (or 5429 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The square root of 52672680 is about 7257.5946428552. The cubic root of 52672680 is about 374.8537029332.

The spelling of 52672680 in words is "fifty-two million, six hundred seventy-two thousand, six hundred eighty".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 18 20 24 27 30 36 40 45 54 60 72 81 90 108 120 135 162 180 216 243 270 324 360 405 486 540 648 810 972 1080 1215 1620 1944 2430 3240 4860 5419 9720 10838 16257 21676 27095 32514 43352 48771 54190 65028 81285 97542 108380 130056 146313 162570 195084 216760 243855 292626 325140 390168 438939 487710 585252 650280 731565 877878 975420 1170504 1316817 1463130 1755756 1950840 2194695 2633634 2926260 3511512 4389390 5267268 5852520 6584085 8778780 10534536 13168170 17557560 26336340 52672680