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1312423051445 = 51173823397181
BaseRepresentation
bin10011000110010010100…
…000101000000010110101
311122110121000111212001122
4103012102200220002311
5133000320300121240
62442530244433325
7163551031605302
oct23062240500265
94573530455048
101312423051445
11466660663660
121924339a8845
13969b7ab185c
144774344c0a9
15242148ae4b5
hex131928280b5

1312423051445 has 32 divisors (see below), whose sum is σ = 1743737013504. Its totient is φ = 940268044800.

The previous prime is 1312423051391. The next prime is 1312423051463. The reversal of 1312423051445 is 5441503242131.

It is not a de Polignac number, because 1312423051445 - 224 = 1312406274229 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3105755 + ... + 3502935.

It is an arithmetic number, because the mean of its divisors is an integer number (54491781672).

Almost surely, 21312423051445 is an apocalyptic number.

It is an amenable number.

1312423051445 is a deficient number, since it is larger than the sum of its proper divisors (431313962059).

1312423051445 is a wasteful number, since it uses less digits than its factorization.

1312423051445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 398093.

The product of its (nonzero) digits is 57600, while the sum is 35.

Adding to 1312423051445 its reverse (5441503242131), we get a palindrome (6753926293576).

The spelling of 1312423051445 in words is "one trillion, three hundred twelve billion, four hundred twenty-three million, fifty-one thousand, four hundred forty-five".

Divisors: 1 5 11 55 73 365 803 823 4015 4115 9053 45265 60079 300395 397181 660869 1985905 3304345 4368991 21844955 28994213 144971065 318936343 326879963 1594681715 1634399815 3595679593 17978397965 23862237299 119311186495 262484610289 1312423051445