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312204030 = 23510406801
BaseRepresentation
bin10010100110111…
…101101011111110
3210202110121102020
4102212331223332
51114411012110
650551341010
710510455555
oct2246755376
9722417366
10312204030
1115025a566
1288681766
134c8b1918
142d66cd9c
151c61ed70
hex129bdafe

312204030 has 16 divisors (see below), whose sum is σ = 749289744. Its totient is φ = 83254400.

The previous prime is 312204017. The next prime is 312204043. The reversal of 312204030 is 30402213.

312204030 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (312204017) and next prime (312204043).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5203371 + ... + 5203430.

It is an arithmetic number, because the mean of its divisors is an integer number (46830609).

Almost surely, 2312204030 is an apocalyptic number.

312204030 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

312204030 is an abundant number, since it is smaller than the sum of its proper divisors (437085714).

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

312204030 is a wasteful number, since it uses less digits than its factorization.

312204030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10406811.

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 312204030 is about 17669.2962508415. The cubic root of 312204030 is about 678.3901001632.

Adding to 312204030 its reverse (30402213), we get a palindrome (342606243).

The spelling of 312204030 in words is "three hundred twelve million, two hundred four thousand, thirty".

Divisors: 1 2 3 5 6 10 15 30 10406801 20813602 31220403 52034005 62440806 104068010 156102015 312204030