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308006961 = 32320832143
BaseRepresentation
bin10010010110111…
…101000000110001
3210110120101010020
4102112331000301
51112322210321
650321354053
710430005323
oct2226750061
9713511106
10308006961
11148953209
1287198929
134ba72452
142cc99613
151c0914c6
hex125bd031

308006961 has 16 divisors (see below), whose sum is σ = 428937216. Its totient is φ = 196224336.

The previous prime is 308006887. The next prime is 308006971. The reversal of 308006961 is 169600803.

It is not a de Polignac number, because 308006961 - 210 = 308005937 is a prime.

It is not an unprimeable number, because it can be changed into a prime (308006971) 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 15 ways as a sum of consecutive naturals, for example, 142656 + ... + 144798.

It is an arithmetic number, because the mean of its divisors is an integer number (26808576).

Almost surely, 2308006961 is an apocalyptic number.

It is an amenable number.

308006961 is a deficient number, since it is larger than the sum of its proper divisors (120930255).

308006961 is a wasteful number, since it uses less digits than its factorization.

308006961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4252.

The product of its (nonzero) digits is 7776, while the sum is 33.

The square root of 308006961 is about 17550.1270935569. The cubic root of 308006961 is about 675.3364292733.

The spelling of 308006961 in words is "three hundred eight million, six thousand, nine hundred sixty-one".

Divisors: 1 3 23 69 2083 2143 6249 6429 47909 49289 143727 147867 4463869 13391607 102668987 308006961