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746168420 = 225172194613
BaseRepresentation
bin101100011110011…
…010000001100100
31221000001021122102
4230132122001210
53012004342140
6202012551232
724330220064
oct5436320144
91830037572
10746168420
11353213418
12189a82518
13bb78579a
14711553a4
1545791e15
hex2c79a064

746168420 has 24 divisors (see below), whose sum is σ = 1659128184. Its totient is φ = 280910336.

The previous prime is 746168411. The next prime is 746168441. The reversal of 746168420 is 24861647.

It can be written as a sum of positive squares in 4 ways, for example, as 122367844 + 623800576 = 11062^2 + 24976^2 .

It is a super-2 number, since 2×7461684202 = 1113534622010592800, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1096967 + ... + 1097646.

It is an arithmetic number, because the mean of its divisors is an integer number (69130341).

Almost surely, 2746168420 is an apocalyptic number.

It is an amenable number.

746168420 is an abundant number, since it is smaller than the sum of its proper divisors (912959764).

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

746168420 is a wasteful number, since it uses less digits than its factorization.

746168420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2194639 (or 2194637 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 38.

The square root of 746168420 is about 27316.0835406542. The cubic root of 746168420 is about 907.0104445935.

The spelling of 746168420 in words is "seven hundred forty-six million, one hundred sixty-eight thousand, four hundred twenty".

Divisors: 1 2 4 5 10 17 20 34 68 85 170 340 2194613 4389226 8778452 10973065 21946130 37308421 43892260 74616842 149233684 186542105 373084210 746168420