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1296375054 = 2313194991753
BaseRepresentation
bin100110101000101…
…0001110100001110
310100100100200020220
41031101101310032
510123333000204
6332345452210
744061002052
oct11521216416
93310320226
101296375054
11605851847
123021a1066
13178769040
14c4259c62
1578c261d9
hex4d451d0e

1296375054 has 64 divisors (see below), whose sum is σ = 2946720000. Its totient is φ = 376918272.

The previous prime is 1296375049. The next prime is 1296375079. The reversal of 1296375054 is 4505736921.

It is a junction number, because it is equal to n+sod(n) for n = 1296374997 and 1296375015.

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, 738642 + ... + 740394.

It is an arithmetic number, because the mean of its divisors is an integer number (46042500).

Almost surely, 21296375054 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1296375054, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1473360000).

1296375054 is an abundant number, since it is smaller than the sum of its proper divisors (1650344946).

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

1296375054 is a wasteful number, since it uses less digits than its factorization.

1296375054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2289.

The product of its (nonzero) digits is 226800, while the sum is 42.

The square root of 1296375054 is about 36005.2087065191. The cubic root of 1296375054 is about 1090.3775181399.

The spelling of 1296375054 in words is "one billion, two hundred ninety-six million, three hundred seventy-five thousand, fifty-four".

Divisors: 1 2 3 6 13 19 26 38 39 57 78 114 247 494 499 741 998 1482 1497 1753 2994 3506 5259 6487 9481 10518 12974 18962 19461 22789 28443 33307 38922 45578 56886 66614 68367 99921 123253 136734 199842 246506 369759 432991 739518 865982 874747 1298973 1749494 2597946 2624241 5248482 11371711 16620193 22743422 33240386 34115133 49860579 68230266 99721158 216062509 432125018 648187527 1296375054