Search a number
-
+
23872100 = 2252767509
BaseRepresentation
bin101101100010…
…0001001100100
31122220211100212
41123010021210
522102401400
62211354552
7406623650
oct133041144
948824325
1023872100
111252550a
127bb2a58
134c3aa05
143255a60
152168335
hex16c4264

23872100 has 72 divisors (see below), whose sum is σ = 60204480. Its totient is φ = 8046720.

The previous prime is 23872087. The next prime is 23872109. The reversal of 23872100 is 127832.

It is not an unprimeable number, because it can be changed into a prime (23872109) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 46646 + ... + 47154.

Almost surely, 223872100 is an apocalyptic number.

23872100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23872100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30102240).

23872100 is an abundant number, since it is smaller than the sum of its proper divisors (36332380).

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

23872100 is a wasteful number, since it uses less digits than its factorization.

23872100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 597 (or 590 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 23872100 is about 4885.9083085952. The cubic root of 23872100 is about 287.9366019144.

Adding to 23872100 its reverse (127832), we get a palindrome (23999932).

The spelling of 23872100 in words is "twenty-three million, eight hundred seventy-two thousand, one hundred".

Divisors: 1 2 4 5 7 10 14 20 25 28 35 50 67 70 100 134 140 175 268 335 350 469 509 670 700 938 1018 1340 1675 1876 2036 2345 2545 3350 3563 4690 5090 6700 7126 9380 10180 11725 12725 14252 17815 23450 25450 34103 35630 46900 50900 68206 71260 89075 136412 170515 178150 238721 341030 356300 477442 682060 852575 954884 1193605 1705150 2387210 3410300 4774420 5968025 11936050 23872100