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421611612 = 22335134301
BaseRepresentation
bin11001001000010…
…100100001011100
31002101100002101220
4121020110201130
51330413032422
6105500333340
713306432242
oct3110244134
91071302356
10421611612
111a6a97054
12b9244250
136946a436
143ddcc792
1527031e5c
hex1921485c

421611612 has 12 divisors (see below), whose sum is σ = 983760456. Its totient is φ = 140537200.

The previous prime is 421611523. The next prime is 421611623. The reversal of 421611612 is 216116124.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

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, 17567139 + ... + 17567162.

It is an arithmetic number, because the mean of its divisors is an integer number (81980038).

Almost surely, 2421611612 is an apocalyptic number.

It is an amenable number.

421611612 is an abundant number, since it is smaller than the sum of its proper divisors (562148844).

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

421611612 is a wasteful number, since it uses less digits than its factorization.

421611612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35134308 (or 35134306 counting only the distinct ones).

The product of its digits is 576, while the sum is 24.

The square root of 421611612 is about 20533.1831920918. The cubic root of 421611612 is about 749.8438857289.

Adding to 421611612 its reverse (216116124), we get a palindrome (637727736).

The spelling of 421611612 in words is "four hundred twenty-one million, six hundred eleven thousand, six hundred twelve".

Divisors: 1 2 3 4 6 12 35134301 70268602 105402903 140537204 210805806 421611612