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300131020 = 22572143793
BaseRepresentation
bin10001111000111…
…010001011001100
3202220202020100201
4101320322023030
51103313143040
645440503244
710303033360
oct2170721314
9686666321
10300131020
11144463972
128461ab24
134a245627
142bc092a0
151b537a9a
hex11e3a2cc

300131020 has 24 divisors (see below), whose sum is σ = 720314784. Its totient is φ = 102902016.

The previous prime is 300130981. The next prime is 300131021. The reversal of 300131020 is 20131003.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 300130988 and 300131006.

It is not an unprimeable number, because it can be changed into a prime (300131021) 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, 1071757 + ... + 1072036.

It is an arithmetic number, because the mean of its divisors is an integer number (30013116).

Almost surely, 2300131020 is an apocalyptic number.

It is an amenable number.

300131020 is an abundant number, since it is smaller than the sum of its proper divisors (420183764).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

300131020 is a wasteful number, since it uses less digits than its factorization.

300131020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2143809 (or 2143807 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 10.

The square root of 300131020 is about 17324.2898844368. The cubic root of 300131020 is about 669.5303904596.

Adding to 300131020 its reverse (20131003), we get a palindrome (320262023).

The spelling of 300131020 in words is "three hundred million, one hundred thirty-one thousand, twenty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 2143793 4287586 8575172 10718965 15006551 21437930 30013102 42875860 60026204 75032755 150065510 300131020