Search a number
-
+
115200240 = 24353712973
BaseRepresentation
bin1101101110111…
…01000011110000
322000202210000120
412313131003300
5213442401430
615233050240
72566120521
oct667350360
9260683016
10115200240
115a033711
12326b6980
131ab3632c
141142a848
15a1a8610
hex6ddd0f0

115200240 has 80 divisors (see below), whose sum is σ = 366800928. Its totient is φ = 29887488.

The previous prime is 115200227. The next prime is 115200251. The reversal of 115200240 is 42002511.

It is a tau number, because it is divible by the number of its divisors (80).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2394 + ... + 15366.

Almost surely, 2115200240 is an apocalyptic number.

115200240 is a gapful number since it is divisible by the number (10) 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 115200240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (183400464).

115200240 is an abundant number, since it is smaller than the sum of its proper divisors (251600688).

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

115200240 is a wasteful number, since it uses less digits than its factorization.

115200240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13026 (or 13020 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 15.

The square root of 115200240 is about 10733.1374723331. The cubic root of 115200240 is about 486.5764975457.

Adding to 115200240 its reverse (42002511), we get a palindrome (157202751).

It can be divided in two parts, 115200 and 240, that added together give a triangular number (115440 = T480).

The spelling of 115200240 in words is "one hundred fifteen million, two hundred thousand, two hundred forty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 30 37 40 48 60 74 80 111 120 148 185 222 240 296 370 444 555 592 740 888 1110 1480 1776 2220 2960 4440 8880 12973 25946 38919 51892 64865 77838 103784 129730 155676 194595 207568 259460 311352 389190 480001 518920 622704 778380 960002 1037840 1440003 1556760 1920004 2400005 2880006 3113520 3840008 4800010 5760012 7200015 7680016 9600020 11520024 14400030 19200040 23040048 28800060 38400080 57600120 115200240