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311010117 = 31123593691
BaseRepresentation
bin10010100010011…
…010001101000101
3210200012221200020
4102202122031011
51114104310432
650510005353
710464354015
oct2242321505
9720187606
10311010117
1114a614560
12881a6859
134c584372
142d43bc45
151c48622c
hex1289a345

311010117 has 32 divisors (see below), whose sum is σ = 473527296. Its totient is φ = 179731200.

The previous prime is 311010109. The next prime is 311010143. The reversal of 311010117 is 711010113.

It is not a de Polignac number, because 311010117 - 23 = 311010109 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 311010096 and 311010105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311010017) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 449742 + ... + 450432.

It is an arithmetic number, because the mean of its divisors is an integer number (14797728).

Almost surely, 2311010117 is an apocalyptic number.

It is an amenable number.

311010117 is a deficient number, since it is larger than the sum of its proper divisors (162517179).

311010117 is a wasteful number, since it uses less digits than its factorization.

311010117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1321.

The product of its (nonzero) digits is 21, while the sum is 15.

The square root of 311010117 is about 17635.4789274349. The cubic root of 311010117 is about 677.5242418127.

The spelling of 311010117 in words is "three hundred eleven million, ten thousand, one hundred seventeen".

Divisors: 1 3 11 23 33 69 253 593 691 759 1779 2073 6523 7601 13639 15893 19569 22803 40917 47679 150029 174823 409763 450087 524469 1229289 4507393 9424549 13522179 28273647 103670039 311010117