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232413021 = 3237697937
BaseRepresentation
bin11011101101001…
…01011101011101
3121012022210201200
431312211131131
5433444204041
635021230113
75521322661
oct1566453535
9535283650
10232413021
1110a211385
1265a02339
13391c56c9
1422c1c8a1
151560d1b6
hexdda575d

232413021 has 12 divisors (see below), whose sum is σ = 344781372. Its totient is φ = 150754176.

The previous prime is 232412981. The next prime is 232413029. The reversal of 232413021 is 120314232.

232413021 is a `hidden beast` number, since 232 + 413 + 0 + 21 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 186322500 + 46090521 = 13650^2 + 6789^2 .

It is not a de Polignac number, because 232413021 - 210 = 232411997 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 232412985 and 232413003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (232413029) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 348636 + ... + 349301.

It is an arithmetic number, because the mean of its divisors is an integer number (28731781).

Almost surely, 2232413021 is an apocalyptic number.

It is an amenable number.

232413021 is a deficient number, since it is larger than the sum of its proper divisors (112368351).

232413021 is a wasteful number, since it uses less digits than its factorization.

232413021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 697980 (or 697977 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 232413021 is about 15245.0982614085. The cubic root of 232413021 is about 614.8277844191.

Adding to 232413021 its reverse (120314232), we get a palindrome (352727253).

It can be divided in two parts, 23241 and 3021, that added together give a palindrome (26262).

The spelling of 232413021 in words is "two hundred thirty-two million, four hundred thirteen thousand, twenty-one".

Divisors: 1 3 9 37 111 333 697937 2093811 6281433 25823669 77471007 232413021