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307137542 = 2701219071
BaseRepresentation
bin10010010011101…
…000110000000110
3210101221012111112
4102103220300012
51112111400132
650251005022
710416424505
oct2223506006
9711835445
10307137542
11148409a88
1286a39772
134b8297ba
142cb1083c
151be6dab2
hex124e8c06

307137542 has 8 divisors (see below), whose sum is σ = 461365632. Its totient is φ = 153349000.

The previous prime is 307137533. The next prime is 307137557. The reversal of 307137542 is 245731703.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 307137499 and 307137508.

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, 108134 + ... + 110937.

It is an arithmetic number, because the mean of its divisors is an integer number (57670704).

Almost surely, 2307137542 is an apocalyptic number.

307137542 is a deficient number, since it is larger than the sum of its proper divisors (154228090).

307137542 is a wasteful number, since it uses less digits than its factorization.

307137542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219774.

The product of its (nonzero) digits is 17640, while the sum is 32.

The square root of 307137542 is about 17525.3399967019. The cubic root of 307137542 is about 674.7004007414.

The spelling of 307137542 in words is "three hundred seven million, one hundred thirty-seven thousand, five hundred forty-two".

Divisors: 1 2 701 1402 219071 438142 153568771 307137542