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307060393 = 1999153607
BaseRepresentation
bin10010010011010…
…101111010101001
3210101210021200011
4102103111322221
51112101413033
650245211521
710415653543
oct2223257251
9711707604
10307060393
11148367022
1286a00ba1
134b800653
142cad0693
151be55ccd
hex124d5ea9

307060393 has 4 divisors (see below), whose sum is σ = 307216000. Its totient is φ = 306904788.

The previous prime is 307060343. The next prime is 307060421. The reversal of 307060393 is 393060703.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-307060393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (307060343) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74805 + ... + 78802.

It is an arithmetic number, because the mean of its divisors is an integer number (76804000).

Almost surely, 2307060393 is an apocalyptic number.

It is an amenable number.

307060393 is a deficient number, since it is larger than the sum of its proper divisors (155607).

307060393 is a wasteful number, since it uses less digits than its factorization.

307060393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155606.

The product of its (nonzero) digits is 10206, while the sum is 31.

The square root of 307060393 is about 17523.1387884705. The cubic root of 307060393 is about 674.6439039900.

The spelling of 307060393 in words is "three hundred seven million, sixty thousand, three hundred ninety-three".

Divisors: 1 1999 153607 307060393