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307020701 = 1323616977
BaseRepresentation
bin10010010011001…
…100001110011101
3210101201021020002
4102103030032131
51112044130301
650244304045
710415430041
oct2223141635
9711637202
10307020701
1114833a219
12869a2025
134b7b8570
142cac0021
151be4916b
hex124cc39d

307020701 has 4 divisors (see below), whose sum is σ = 330637692. Its totient is φ = 283403712.

The previous prime is 307020689. The next prime is 307020713. The reversal of 307020701 is 107020703.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 107020703 = 967911057.

It is an interprime number because it is at equal distance from previous prime (307020689) and next prime (307020713).

It can be written as a sum of positive squares in 2 ways, for example, as 29964676 + 277056025 = 5474^2 + 16645^2 .

It is a cyclic number.

It is not a de Polignac number, because 307020701 - 222 = 302826397 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (307020101) 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, 11808476 + ... + 11808501.

It is an arithmetic number, because the mean of its divisors is an integer number (82659423).

Almost surely, 2307020701 is an apocalyptic number.

It is an amenable number.

307020701 is a deficient number, since it is larger than the sum of its proper divisors (23616991).

307020701 is a wasteful number, since it uses less digits than its factorization.

307020701 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23616990.

The product of its (nonzero) digits is 294, while the sum is 20.

The square root of 307020701 is about 17522.0061922144. The cubic root of 307020701 is about 674.6148335744.

The spelling of 307020701 in words is "three hundred seven million, twenty thousand, seven hundred one".

Divisors: 1 13 23616977 307020701