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70300831 = 174135343
BaseRepresentation
bin1000011000010…
…11010010011111
311220021122121111
410030023102133
5120444111311
610550442451
71512355456
oct414132237
9156248544
1070300831
1136757067
121b663427
1311745733
14949db9d
156289d21
hex430b49f

70300831 has 4 divisors (see below), whose sum is σ = 74436192. Its totient is φ = 66165472.

The previous prime is 70300823. The next prime is 70300849. The reversal of 70300831 is 13800307.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 70300831 - 23 = 70300823 is a prime.

It is a super-2 number, since 2×703008312 = 9884413678581122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70300871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2067655 + ... + 2067688.

It is an arithmetic number, because the mean of its divisors is an integer number (18609048).

Almost surely, 270300831 is an apocalyptic number.

70300831 is a deficient number, since it is larger than the sum of its proper divisors (4135361).

70300831 is a wasteful number, since it uses less digits than its factorization.

70300831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4135360.

The product of its (nonzero) digits is 504, while the sum is 22.

The square root of 70300831 is about 8384.5590820269. The cubic root of 70300831 is about 412.7180721440.

The spelling of 70300831 in words is "seventy million, three hundred thousand, eight hundred thirty-one".

Divisors: 1 17 4135343 70300831