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2303252240 = 245139207127
BaseRepresentation
bin1000100101001000…
…1101011100010000
312221111222100002112
42021102031130100
514204113032430
61020314404452
7111035215052
oct21122153420
95844870075
102303252240
11a82142553
12543430728
132a9243563
1417bc778d2
15d7315195
hex8948d710

2303252240 has 40 divisors (see below), whose sum is σ = 5393613120. Its totient is φ = 914668416.

The previous prime is 2303252227. The next prime is 2303252243. The reversal of 2303252240 is 422523032.

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (2303252243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 92444 + ... + 114683.

It is an arithmetic number, because the mean of its divisors is an integer number (134840328).

Almost surely, 22303252240 is an apocalyptic number.

2303252240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2303252240 is an abundant number, since it is smaller than the sum of its proper divisors (3090360880).

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

2303252240 is a wasteful number, since it uses less digits than its factorization.

2303252240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207279 (or 207273 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 23.

The square root of 2303252240 is about 47992.2102012400. The cubic root of 2303252240 is about 1320.6279993104.

Adding to 2303252240 its reverse (422523032), we get a palindrome (2725775272).

The spelling of 2303252240 in words is "two billion, three hundred three million, two hundred fifty-two thousand, two hundred forty".

Divisors: 1 2 4 5 8 10 16 20 40 80 139 278 556 695 1112 1390 2224 2780 5560 11120 207127 414254 828508 1035635 1657016 2071270 3314032 4142540 8285080 16570160 28790653 57581306 115162612 143953265 230325224 287906530 460650448 575813060 1151626120 2303252240