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1300123412 = 227192443841
BaseRepresentation
bin100110101111110…
…0100111100010100
310100121102010000222
41031133210330110
510130312422122
6333002053512
744134603160
oct11537447424
93317363028
101300123412
11607981a65
123034aa298
1317947c1c3
14c4953ca0
1579216b42
hex4d7e4f14

1300123412 has 24 divisors (see below), whose sum is σ = 2737103040. Its totient is φ = 527869440.

The previous prime is 1300123397. The next prime is 1300123417. The reversal of 1300123412 is 2143210031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1300123417) 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 7 ways as a sum of consecutive naturals, for example, 1221389 + ... + 1222452.

It is an arithmetic number, because the mean of its divisors is an integer number (114045960).

Almost surely, 21300123412 is an apocalyptic number.

It is an amenable number.

1300123412 is an abundant number, since it is smaller than the sum of its proper divisors (1436979628).

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

1300123412 is a wasteful number, since it uses less digits than its factorization.

1300123412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2443871 (or 2443869 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 1300123412 is about 36057.2241305401. The cubic root of 1300123412 is about 1091.4274181166.

Adding to 1300123412 its reverse (2143210031), we get a palindrome (3443333443).

The spelling of 1300123412 in words is "one billion, three hundred million, one hundred twenty-three thousand, four hundred twelve".

Divisors: 1 2 4 7 14 19 28 38 76 133 266 532 2443841 4887682 9775364 17106887 34213774 46432979 68427548 92865958 185731916 325030853 650061706 1300123412