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320794542 = 232137130087
BaseRepresentation
bin10011000111101…
…110111110101110
3211100122001101100
4103013232332232
51124110411132
651455423530
710643465025
oct2307567656
9740561340
10320794542
11155097762
128b524ba6
13515cba73
14308678bc
151d26a37c
hex131eefae

320794542 has 24 divisors (see below), whose sum is σ = 700133616. Its totient is φ = 106150176.

The previous prime is 320794519. The next prime is 320794553. The reversal of 320794542 is 245497023.

320794542 is a `hidden beast` number, since 3 + 20 + 7 + 94 + 542 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 320794497 and 320794506.

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 11 ways as a sum of consecutive naturals, for example, 62578 + ... + 67509.

It is an arithmetic number, because the mean of its divisors is an integer number (29172234).

Almost surely, 2320794542 is an apocalyptic number.

320794542 is an abundant number, since it is smaller than the sum of its proper divisors (379339074).

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

320794542 is a wasteful number, since it uses less digits than its factorization.

320794542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130232 (or 130229 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 36.

The square root of 320794542 is about 17910.7381757425. The cubic root of 320794542 is about 684.5560139937.

The spelling of 320794542 in words is "three hundred twenty million, seven hundred ninety-four thousand, five hundred forty-two".

Divisors: 1 2 3 6 9 18 137 274 411 822 1233 2466 130087 260174 390261 780522 1170783 2341566 17821919 35643838 53465757 106931514 160397271 320794542