Search a number
-
+
1227430 = 25122743
BaseRepresentation
bin100101011101010100110
32022100201101
410223222212
5303234210
642150314
713301341
oct4535246
92270641
101227430
11769206
124b239a
1333c8b9
1423d458
15193a3a
hex12baa6

1227430 has 8 divisors (see below), whose sum is σ = 2209392. Its totient is φ = 490968.

The previous prime is 1227407. The next prime is 1227431. The reversal of 1227430 is 347221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 1227398 and 1227407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1227431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61362 + ... + 61381.

It is an arithmetic number, because the mean of its divisors is an integer number (276174).

21227430 is an apocalyptic number.

1227430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1227430 is a deficient number, since it is larger than the sum of its proper divisors (981962).

1227430 is a wasteful number, since it uses less digits than its factorization.

1227430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122750.

The product of its (nonzero) digits is 336, while the sum is 19.

The square root of 1227430 is about 1107.8943992999. The cubic root of 1227430 is about 107.0694515188.

The spelling of 1227430 in words is "one million, two hundred twenty-seven thousand, four hundred thirty".

Divisors: 1 2 5 10 122743 245486 613715 1227430