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6870430731 = 310721403211
BaseRepresentation
bin1100110011000001…
…00111010000001011
3122201210221001011110
412121200213100023
5103032312240411
63053425101403
7332153461203
oct63140472013
918653831143
106870430731
112a061a732a
1213b8a87863
1385650b538
1449266d403
152a32732a6
hex19982740b

6870430731 has 8 divisors (see below), whose sum is σ = 9246187584. Its totient is φ = 4537480520.

The previous prime is 6870430727. The next prime is 6870430741. The reversal of 6870430731 is 1370340786.

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

It is not a de Polignac number, because 6870430731 - 22 = 6870430727 is a prime.

It is a super-2 number, since 2×68704307312 = 94405636858938388722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 6870430731.

It is not an unprimeable number, because it can be changed into a prime (6870430741) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10701285 + ... + 10701926.

It is an arithmetic number, because the mean of its divisors is an integer number (1155773448).

Almost surely, 26870430731 is an apocalyptic number.

6870430731 is a deficient number, since it is larger than the sum of its proper divisors (2375756853).

6870430731 is a wasteful number, since it uses less digits than its factorization.

6870430731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21403321.

The product of its (nonzero) digits is 84672, while the sum is 39.

The square root of 6870430731 is about 82888.0614503681. The cubic root of 6870430731 is about 1901.0548833782.

The spelling of 6870430731 in words is "six billion, eight hundred seventy million, four hundred thirty thousand, seven hundred thirty-one".

Divisors: 1 3 107 321 21403211 64209633 2290143577 6870430731