Search a number
-
+
233006540 = 225133128909
BaseRepresentation
bin11011110001101…
…10010111001100
3121020102221212212
431320312113030
5434122202130
635042045552
75526344234
oct1570662714
9536387785
10233006540
1110a587298
12660498b8
13393728c0
1422d34cc4
15156c8e95
hexde365cc

233006540 has 48 divisors (see below), whose sum is σ = 543970560. Its totient is φ = 83255040.

The previous prime is 233006531. The next prime is 233006621. The reversal of 233006540 is 45600332.

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, 6395 + ... + 22514.

It is an arithmetic number, because the mean of its divisors is an integer number (11332720).

Almost surely, 2233006540 is an apocalyptic number.

233006540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

233006540 is an abundant number, since it is smaller than the sum of its proper divisors (310964020).

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

233006540 is a wasteful number, since it uses less digits than its factorization.

233006540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28962 (or 28960 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 23.

The square root of 233006540 is about 15264.5517457933. The cubic root of 233006540 is about 615.3507066172.

Adding to 233006540 its reverse (45600332), we get a palindrome (278606872).

The spelling of 233006540 in words is "two hundred thirty-three million, six thousand, five hundred forty".

Divisors: 1 2 4 5 10 13 20 26 31 52 62 65 124 130 155 260 310 403 620 806 1612 2015 4030 8060 28909 57818 115636 144545 289090 375817 578180 751634 896179 1503268 1792358 1879085 3584716 3758170 4480895 7516340 8961790 11650327 17923580 23300654 46601308 58251635 116503270 233006540