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300111031 = 1131880091
BaseRepresentation
bin10001111000110…
…101010010110111
3202220201012221101
4101320311102313
51103312023111
645440230531
710302621163
oct2170652267
9686635841
10300111031
1114444a950
128460b447
134a2394bc
142bc01ca3
151b531bc1
hex11e354b7

300111031 has 8 divisors (see below), whose sum is σ = 337955328. Its totient is φ = 264027000.

The previous prime is 300111017. The next prime is 300111037. The reversal of 300111031 is 130111003.

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

It is not a de Polignac number, because 300111031 - 25 = 300110999 is a prime.

It is a super-2 number, since 2×3001110312 = 180133261855765922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 300110999 and 300111017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (300111037) 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, 439705 + ... + 440386.

It is an arithmetic number, because the mean of its divisors is an integer number (42244416).

Almost surely, 2300111031 is an apocalyptic number.

300111031 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

300111031 is a deficient number, since it is larger than the sum of its proper divisors (37844297).

300111031 is a wasteful number, since it uses less digits than its factorization.

300111031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 880133.

The product of its (nonzero) digits is 9, while the sum is 10.

The square root of 300111031 is about 17323.7129680678. The cubic root of 300111031 is about 669.5155263512.

Adding to 300111031 its reverse (130111003), we get a palindrome (430222034).

The spelling of 300111031 in words is "three hundred million, one hundred eleven thousand, thirty-one".

Divisors: 1 11 31 341 880091 9681001 27282821 300111031