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23688270 = 2325436121
BaseRepresentation
bin101101001011…
…1010001001110
31122120111012100
41122113101032
522031011040
62203415530
7405230004
oct132272116
948514170
1023688270
111240a391
127b245a6
134ba5138
143208a74
15212db30
hex169744e

23688270 has 48 divisors (see below), whose sum is σ = 63032112. Its totient is φ = 6168960.

The previous prime is 23688263. The next prime is 23688299. The reversal of 23688270 is 7288632.

It is a happy number.

It is a super-2 number, since 2×236882702 = 1122268271185800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 810 + ... + 6930.

It is an arithmetic number, because the mean of its divisors is an integer number (1313169).

Almost surely, 223688270 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23688270, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31516056).

23688270 is an abundant number, since it is smaller than the sum of its proper divisors (39343842).

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

23688270 is a wasteful number, since it uses less digits than its factorization.

23688270 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6177 (or 6174 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The square root of 23688270 is about 4867.0596873266. The cubic root of 23688270 is about 287.1955996848.

The spelling of 23688270 in words is "twenty-three million, six hundred eighty-eight thousand, two hundred seventy".

Divisors: 1 2 3 5 6 9 10 15 18 30 43 45 86 90 129 215 258 387 430 645 774 1290 1935 3870 6121 12242 18363 30605 36726 55089 61210 91815 110178 183630 263203 275445 526406 550890 789609 1316015 1579218 2368827 2632030 3948045 4737654 7896090 11844135 23688270