Search a number
-
+
233207380 = 22571665767
BaseRepresentation
bin11011110011001…
…11011001010100
3121020211011101101
431321213121110
5434200114010
635050235444
75531141620
oct1571473124
9536734341
10233207380
1110a70417a
1266125b84
1339413143
1422d88180
151571873a
hexde67654

233207380 has 24 divisors (see below), whose sum is σ = 559698048. Its totient is φ = 79956768.

The previous prime is 233207297. The next prime is 233207423. The reversal of 233207380 is 83702332.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 832744 + ... + 833023.

It is an arithmetic number, because the mean of its divisors is an integer number (23320752).

Almost surely, 2233207380 is an apocalyptic number.

233207380 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

233207380 is an abundant number, since it is smaller than the sum of its proper divisors (326490668).

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

233207380 is a wasteful number, since it uses less digits than its factorization.

233207380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1665783 (or 1665781 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 28.

The square root of 233207380 is about 15271.1289693984. The cubic root of 233207380 is about 615.5274563689.

The spelling of 233207380 in words is "two hundred thirty-three million, two hundred seven thousand, three hundred eighty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 1665767 3331534 6663068 8328835 11660369 16657670 23320738 33315340 46641476 58301845 116603690 233207380