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1312231223300 = 225213122312233
BaseRepresentation
bin10011000110000111000…
…100110111000000000100
311122110002122112222022112
4103012013010313000010
5132444422143121200
62442455233120152
7163543212234464
oct23060704670004
94573078488275
101312231223300
114665723522a8
1219239b6b9058
1396987128c8a
1447725b95ba4
1524202b1b535
hex13187137004

1312231223300 has 18 divisors (see below), whose sum is σ = 2847541754778. Its totient is φ = 524892489280.

The previous prime is 1312231223297. The next prime is 1312231223321. The reversal of 1312231223300 is 33221322131.

It can be written as a sum of positive squares in 3 ways, for example, as 106820463556 + 1205410759744 = 326834^2 + 1097912^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6561156017 + ... + 6561156216.

Almost surely, 21312231223300 is an apocalyptic number.

1312231223300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1312231223300 is an abundant number, since it is smaller than the sum of its proper divisors (1535310531478).

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

1312231223300 is a wasteful number, since it uses less digits than its factorization.

1312231223300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13122312247 (or 13122312240 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 1312231223300 its reverse (33221322131), we get a palindrome (1345452545431).

The spelling of 1312231223300 in words is "one trillion, three hundred twelve billion, two hundred thirty-one million, two hundred twenty-three thousand, three hundred".

Divisors: 1 2 4 5 10 20 25 50 100 13122312233 26244624466 52489248932 65611561165 131223122330 262446244660 328057805825 656115611650 1312231223300