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1028479344218 = 21758907513511
BaseRepresentation
bin11101111011101100010…
…01010101111001011010
310122022200111100000021122
432331312021111321122
5113322311203003333
62104251001405242
7134206451120054
oct16756611257132
93568614300248
101028479344218
113671a2860807
121473ab799822
1375ca65b8901
1437ac89328d4
151bb46b15798
hexef76255e5a

1028479344218 has 16 divisors (see below), whose sum is σ = 1633498104384. Its totient is φ = 483981120960.

The previous prime is 1028479344163. The next prime is 1028479344223. The reversal of 1028479344218 is 8124439748201.

It is a super-2 number, since 2×10284793442182 (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1028479344218.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1746083 + ... + 2259593.

It is an arithmetic number, because the mean of its divisors is an integer number (102093631524).

Almost surely, 21028479344218 is an apocalyptic number.

1028479344218 is a deficient number, since it is larger than the sum of its proper divisors (605018760166).

1028479344218 is a wasteful number, since it uses less digits than its factorization.

1028479344218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 572437.

The product of its (nonzero) digits is 3096576, while the sum is 53.

The spelling of 1028479344218 in words is "one trillion, twenty-eight billion, four hundred seventy-nine million, three hundred forty-four thousand, two hundred eighteen".

Divisors: 1 2 17 34 58907 117814 513511 1001419 1027022 2002838 8729687 17459374 30249392477 60498784954 514239672109 1028479344218