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210401230 = 25131618471
BaseRepresentation
bin11001000101001…
…11011111001110
3112122220111020011
430202213133032
5412330314410
632513343434
75133244444
oct1442473716
9478814204
10210401230
11a8847616
125a567b7a
1334789690
141dd2cb94
151371118a
hexc8a77ce

210401230 has 16 divisors (see below), whose sum is σ = 407854944. Its totient is φ = 77686560.

The previous prime is 210401221. The next prime is 210401237. The reversal of 210401230 is 32104012.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a self number, because there is not a number n which added to its sum of digits gives 210401230.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210401237) 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, 809106 + ... + 809365.

It is an arithmetic number, because the mean of its divisors is an integer number (25490934).

Almost surely, 2210401230 is an apocalyptic number.

210401230 is a deficient number, since it is larger than the sum of its proper divisors (197453714).

210401230 is a wasteful number, since it uses less digits than its factorization.

210401230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1618491.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 210401230 is about 14505.2138901845. The cubic root of 210401230 is about 594.7705067921.

Adding to 210401230 its reverse (32104012), we get a palindrome (242505242).

The spelling of 210401230 in words is "two hundred ten million, four hundred one thousand, two hundred thirty".

Divisors: 1 2 5 10 13 26 65 130 1618471 3236942 8092355 16184710 21040123 42080246 105200615 210401230