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1300120300 = 225283156641
BaseRepresentation
bin100110101111110…
…0100001011101100
310100121101221202201
41031133210023230
510130312322200
6333002031244
744134561123
oct11537441354
93317357681
101300120300
1160797a696
123034a8524
1317947a96b
14c4952aba
1579215c6a
hex4d7e42ec

1300120300 has 36 divisors (see below), whose sum is σ = 2855270376. Its totient is φ = 513779200.

The previous prime is 1300120247. The next prime is 1300120303. The reversal of 1300120300 is 30210031.

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

It is not an unprimeable number, because it can be changed into a prime (1300120303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 70021 + ... + 86620.

It is an arithmetic number, because the mean of its divisors is an integer number (79313066).

Almost surely, 21300120300 is an apocalyptic number.

1300120300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1300120300 is an abundant number, since it is smaller than the sum of its proper divisors (1555150076).

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

1300120300 is a wasteful number, since it uses less digits than its factorization.

1300120300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156738 (or 156731 counting only the distinct ones).

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

The square root of 1300120300 is about 36057.1809768873. The cubic root of 1300120300 is about 1091.4265472955.

Adding to 1300120300 its reverse (30210031), we get a palindrome (1330330331).

The spelling of 1300120300 in words is "one billion, three hundred million, one hundred twenty thousand, three hundred".

Divisors: 1 2 4 5 10 20 25 50 83 100 166 332 415 830 1660 2075 4150 8300 156641 313282 626564 783205 1566410 3132820 3916025 7832050 13001203 15664100 26002406 52004812 65006015 130012030 260024060 325030075 650060150 1300120300