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23087250 = 2325331331
BaseRepresentation
bin101100000010…
…0100010010010
31121102221202100
41120010202102
521402243000
62142501230
7400144524
oct130044222
947387670
1023087250
111203987a
127894816
134a246c4
1430cda14
152060a00
hex1604892

23087250 has 96 divisors (see below), whose sum is σ = 64636416. Its totient is φ = 5940000.

The previous prime is 23087237. The next prime is 23087291. The reversal of 23087250 is 5278032.

It is a super-2 number, since 2×230872502 = 1066042225125000, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 69585 + ... + 69915.

It is an arithmetic number, because the mean of its divisors is an integer number (673296).

Almost surely, 223087250 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23087250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32318208).

23087250 is an abundant number, since it is smaller than the sum of its proper divisors (41549166).

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

23087250 is a wasteful number, since it uses less digits than its factorization.

23087250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 385 (or 372 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 23087250 is about 4804.9193541619. The cubic root of 23087250 is about 284.7458491421.

The spelling of 23087250 in words is "twenty-three million, eighty-seven thousand, two hundred fifty".

Divisors: 1 2 3 5 6 9 10 15 18 25 30 31 45 50 62 75 90 93 125 150 155 186 225 250 279 310 331 375 450 465 558 662 750 775 930 993 1125 1395 1550 1655 1986 2250 2325 2790 2979 3310 3875 4650 4965 5958 6975 7750 8275 9930 10261 11625 13950 14895 16550 20522 23250 24825 29790 30783 34875 41375 49650 51305 61566 69750 74475 82750 92349 102610 124125 148950 153915 184698 248250 256525 307830 372375 461745 513050 744750 769575 923490 1282625 1539150 2308725 2565250 3847875 4617450 7695750 11543625 23087250