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1301331100 = 225223954449
BaseRepresentation
bin100110110010000…
…1011110010011100
310100200200110200011
41031210023302130
510131120043400
6333044013004
744151063136
oct11544136234
93320613604
101301331100
11608627353
12303991164
131797b2b04
14c4b8a056
15793a48ba
hex4d90bc9c

1301331100 has 36 divisors (see below), whose sum is σ = 2835756000. Its totient is φ = 518344960.

The previous prime is 1301331091. The next prime is 1301331133. The reversal of 1301331100 is 11331031.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3325 + ... + 51124.

It is an arithmetic number, because the mean of its divisors is an integer number (78771000).

Almost surely, 21301331100 is an apocalyptic number.

1301331100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1301331100 is an abundant number, since it is smaller than the sum of its proper divisors (1534424900).

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

1301331100 is a wasteful number, since it uses less digits than its factorization.

1301331100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54702 (or 54695 counting only the distinct ones).

The product of its (nonzero) digits is 27, while the sum is 13.

The square root of 1301331100 is about 36073.9670676792. The cubic root of 1301331100 is about 1091.7652567823.

Adding to 1301331100 its reverse (11331031), we get a palindrome (1312662131).

The spelling of 1301331100 in words is "one billion, three hundred one million, three hundred thirty-one thousand, one hundred".

Divisors: 1 2 4 5 10 20 25 50 100 239 478 956 1195 2390 4780 5975 11950 23900 54449 108898 217796 272245 544490 1088980 1361225 2722450 5444900 13013311 26026622 52053244 65066555 130133110 260266220 325332775 650665550 1301331100