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23065620 = 22351920233
BaseRepresentation
bin101011111111…
…1010000010100
31121101212002020
41113333100110
521401044440
62142213140
7400024464
oct127772024
947355066
1023065620
11120245a6
1278841b0
134a178c6
1430c5ba4
1520593d0
hex15ff414

23065620 has 48 divisors (see below), whose sum is σ = 67986240. Its totient is φ = 5826816.

The previous prime is 23065589. The next prime is 23065631. The reversal of 23065620 is 2656032.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8977 + ... + 11256.

It is an arithmetic number, because the mean of its divisors is an integer number (1416380).

Almost surely, 223065620 is an apocalyptic number.

23065620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23065620 is an abundant number, since it is smaller than the sum of its proper divisors (44920620).

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

23065620 is a wasteful number, since it uses less digits than its factorization.

23065620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20264 (or 20262 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 23065620 is about 4802.6680085136. The cubic root of 23065620 is about 284.6568970559.

The spelling of 23065620 in words is "twenty-three million, sixty-five thousand, six hundred twenty".

Divisors: 1 2 3 4 5 6 10 12 15 19 20 30 38 57 60 76 95 114 190 228 285 380 570 1140 20233 40466 60699 80932 101165 121398 202330 242796 303495 384427 404660 606990 768854 1153281 1213980 1537708 1922135 2306562 3844270 4613124 5766405 7688540 11532810 23065620