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231411020 = 22511570551
BaseRepresentation
bin11011100101100…
…00110101001100
3121010102220020112
431302300311030
5433220123040
634543535152
75506650461
oct1562606514
9533386215
10231411020
11109697585
12655ba4b8
1338c345c9
1422a3b668
15154b1365
hexdcb0d4c

231411020 has 12 divisors (see below), whose sum is σ = 485963184. Its totient is φ = 92564400.

The previous prime is 231411017. The next prime is 231411029. The reversal of 231411020 is 20114132.

231411020 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 231410986 and 231411004.

It is not an unprimeable number, because it can be changed into a prime (231411029) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5785256 + ... + 5785295.

It is an arithmetic number, because the mean of its divisors is an integer number (40496932).

Almost surely, 2231411020 is an apocalyptic number.

231411020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

231411020 is an abundant number, since it is smaller than the sum of its proper divisors (254552164).

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

231411020 is a wasteful number, since it uses less digits than its factorization.

231411020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11570560 (or 11570558 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 231411020 is about 15212.1997094437. The cubic root of 231411020 is about 613.9429436950.

Adding to 231411020 its reverse (20114132), we get a palindrome (251525152).

The spelling of 231411020 in words is "two hundred thirty-one million, four hundred eleven thousand, twenty".

Divisors: 1 2 4 5 10 20 11570551 23141102 46282204 57852755 115705510 231411020