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307052542 = 2153526271
BaseRepresentation
bin10010010011010…
…011111111111110
3210101202212220101
4102103103333332
51112101140132
650245111314
710415621626
oct2223237776
9711685811
10307052542
11148361135
12869b853a
134b7c9bc4
142cacb886
151be537e7
hex124d3ffe

307052542 has 4 divisors (see below), whose sum is σ = 460578816. Its totient is φ = 153526270.

The previous prime is 307052519. The next prime is 307052587. The reversal of 307052542 is 245250703.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 245250703 = 317911313.

It is a self number, because there is not a number n which added to its sum of digits gives 307052542.

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 as a sum of consecutive naturals, namely, 76763134 + ... + 76763137.

It is an arithmetic number, because the mean of its divisors is an integer number (115144704).

Almost surely, 2307052542 is an apocalyptic number.

307052542 is a deficient number, since it is larger than the sum of its proper divisors (153526274).

307052542 is a wasteful number, since it uses less digits than its factorization.

307052542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153526273.

The product of its (nonzero) digits is 8400, while the sum is 28.

The square root of 307052542 is about 17522.9147689533. The cubic root of 307052542 is about 674.6381541174.

The spelling of 307052542 in words is "three hundred seven million, fifty-two thousand, five hundred forty-two".

Divisors: 1 2 153526271 307052542