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308496042 = 232171008157
BaseRepresentation
bin10010011000110…
…100011010101010
3210111111020000100
4102120310122222
51112433333132
650340050230
710434113241
oct2230643252
9714436010
10308496042
11149157708
1287393976
134bbb3c4a
142cd85958
151c13b37c
hex126346aa

308496042 has 24 divisors (see below), whose sum is σ = 707726916. Its totient is φ = 96782976.

The previous prime is 308496017. The next prime is 308496043. The reversal of 308496042 is 240694803.

It is a happy number.

308496042 is a `hidden beast` number, since 3 + 0 + 8 + 49 + 604 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 276922881 + 31573161 = 16641^2 + 5619^2 .

It is a junction number, because it is equal to n+sod(n) for n = 308495988 and 308496006.

It is not an unprimeable number, because it can be changed into a prime (308496043) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 503773 + ... + 504384.

Almost surely, 2308496042 is an apocalyptic number.

308496042 is an abundant number, since it is smaller than the sum of its proper divisors (399230874).

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

308496042 is a wasteful number, since it uses less digits than its factorization.

308496042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1008182 (or 1008179 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

The square root of 308496042 is about 17564.0553973164. The cubic root of 308496042 is about 675.6936934356.

The spelling of 308496042 in words is "three hundred eight million, four hundred ninety-six thousand, forty-two".

Divisors: 1 2 3 6 9 17 18 34 51 102 153 306 1008157 2016314 3024471 6048942 9073413 17138669 18146826 34277338 51416007 102832014 154248021 308496042