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30710109 = 317701859
BaseRepresentation
bin111010100100…
…1100101011101
32010210020100110
41311021211131
530330210414
63014120233
7522013563
oct165114535
963706313
1030710109
1116375a61
12a350079
136493281
144115a33
152a69459
hex1d4995d

30710109 has 16 divisors (see below), whose sum is σ = 43467840. Its totient is φ = 19219200.

The previous prime is 30710087. The next prime is 30710117. The reversal of 30710109 is 90101703.

It is not a de Polignac number, because 30710109 - 25 = 30710077 is a prime.

It is a super-2 number, since 2×307101092 = 1886221589583762, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30710509) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35322 + ... + 36180.

It is an arithmetic number, because the mean of its divisors is an integer number (2716740).

Almost surely, 230710109 is an apocalyptic number.

It is an amenable number.

30710109 is a deficient number, since it is larger than the sum of its proper divisors (12757731).

30710109 is a wasteful number, since it uses less digits than its factorization.

30710109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1580.

The product of its (nonzero) digits is 189, while the sum is 21.

The square root of 30710109 is about 5541.6702355878. The cubic root of 30710109 is about 313.1557948765.

The spelling of 30710109 in words is "thirty million, seven hundred ten thousand, one hundred nine".

Divisors: 1 3 17 51 701 859 2103 2577 11917 14603 35751 43809 602159 1806477 10236703 30710109