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23020338 = 2311536581
BaseRepresentation
bin101011111010…
…0001100110010
31121022112222010
41113310030302
521343122323
62141223350
7366445455
oct127641462
947275863
1023020338
1111aa3580
127861b56
134a00103
1430b349c
15204ac93
hex15f4332

23020338 has 32 divisors (see below), whose sum is σ = 51181632. Its totient is φ = 6843200.

The previous prime is 23020337. The next prime is 23020339. The reversal of 23020338 is 83302032.

It is an interprime number because it is at equal distance from previous prime (23020337) and next prime (23020339).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (23020337) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 208 + ... + 6788.

It is an arithmetic number, because the mean of its divisors is an integer number (1599426).

Almost surely, 223020338 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23020338, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25590816).

23020338 is an abundant number, since it is smaller than the sum of its proper divisors (28161294).

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

23020338 is a wasteful number, since it uses less digits than its factorization.

23020338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6650.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 23020338 is about 4797.9514378535. The cubic root of 23020338 is about 284.4704972995.

The spelling of 23020338 in words is "twenty-three million, twenty thousand, three hundred thirty-eight".

Divisors: 1 2 3 6 11 22 33 53 66 106 159 318 583 1166 1749 3498 6581 13162 19743 39486 72391 144782 217173 348793 434346 697586 1046379 2092758 3836723 7673446 11510169 23020338