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1312310300 = 225271874729
BaseRepresentation
bin100111000111000…
…0100010000011100
310101110100021022012
41032032010100130
510141422412200
6334115210352
744343311360
oct11616042034
93343307265
101312310300
11613846174
123075a69b8
1317bb58292
14c64072a0
157a322a35
hex4e38441c

1312310300 has 36 divisors (see below), whose sum is σ = 3254531280. Its totient is φ = 449934720.

The previous prime is 1312310281. The next prime is 1312310303. The reversal of 1312310300 is 30132131.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312310303) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 936665 + ... + 938064.

Almost surely, 21312310300 is an apocalyptic number.

1312310300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1312310300 is an abundant number, since it is smaller than the sum of its proper divisors (1942220980).

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

1312310300 is a wasteful number, since it uses less digits than its factorization.

1312310300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1874750 (or 1874743 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 14.

The square root of 1312310300 is about 36225.8236621336. The cubic root of 1312310300 is about 1094.8270335555.

Adding to 1312310300 its reverse (30132131), we get a palindrome (1342442431).

The spelling of 1312310300 in words is "one billion, three hundred twelve million, three hundred ten thousand, three hundred".

Divisors: 1 2 4 5 7 10 14 20 25 28 35 50 70 100 140 175 350 700 1874729 3749458 7498916 9373645 13123103 18747290 26246206 37494580 46868225 52492412 65615515 93736450 131231030 187472900 262462060 328077575 656155150 1312310300