Search a number
-
+
23052890 = 2571917333
BaseRepresentation
bin101011111110…
…0001001011010
31121101012121202
41113330021122
521400143030
62142034202
7366642410
oct127741132
947335552
1023052890
1112015a83
127878962
134a11b83
1430c12b0
152055745
hex15fc25a

23052890 has 32 divisors (see below), whose sum is σ = 49921920. Its totient is φ = 7487424.

The previous prime is 23052857. The next prime is 23052899. The reversal of 23052890 is 9825032.

It is not an unprimeable number, because it can be changed into a prime (23052899) 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, 7337 + ... + 9996.

It is an arithmetic number, because the mean of its divisors is an integer number (1560060).

Almost surely, 223052890 is an apocalyptic number.

23052890 is an abundant number, since it is smaller than the sum of its proper divisors (26869030).

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

23052890 is a wasteful number, since it uses less digits than its factorization.

23052890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17366.

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 23052890 is about 4801.3425205873. The cubic root of 23052890 is about 284.6045196916.

The spelling of 23052890 in words is "twenty-three million, fifty-two thousand, eight hundred ninety".

Divisors: 1 2 5 7 10 14 19 35 38 70 95 133 190 266 665 1330 17333 34666 86665 121331 173330 242662 329327 606655 658654 1213310 1646635 2305289 3293270 4610578 11526445 23052890