Search a number
-
+
23550 = 2352157
BaseRepresentation
bin101101111111110
31012022020
411233332
51223200
6301010
7125442
oct55776
935266
1023550
111676a
1211766
13a947
148822
156ea0
hex5bfe

23550 has 24 divisors (see below), whose sum is σ = 58776. Its totient is φ = 6240.

The previous prime is 23549. The next prime is 23557. The reversal of 23550 is 5532.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a nialpdrome in base 14.

It is a zygodrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23557) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 72 + ... + 228.

It is an arithmetic number, because the mean of its divisors is an integer number (2449).

223550 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29388).

23550 is an abundant number, since it is smaller than the sum of its proper divisors (35226).

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

23550 is a wasteful number, since it uses less digits than its factorization.

23550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172 (or 167 counting only the distinct ones).

The product of its (nonzero) digits is 150, while the sum is 15.

The square root of 23550 is about 153.4600925322. The cubic root of 23550 is about 28.6635715666.

The spelling of 23550 in words is "twenty-three thousand, five hundred fifty".

Divisors: 1 2 3 5 6 10 15 25 30 50 75 150 157 314 471 785 942 1570 2355 3925 4710 7850 11775 23550