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13404738848 = 259722112
BaseRepresentation
bin11000111101111110…
…00001010100100000
31021121012101021210012
430132333001110200
5204423103120343
610054050024052
7653116254164
oct143677012440
937535337705
1013404738848
115759697776
122721278028
1313581b2247
14912404ca4
15536c4e718
hex31efc1520

13404738848 has 54 divisors (see below), whose sum is σ = 26792427753. Its totient is φ = 6601835520.

The previous prime is 13404738803. The next prime is 13404738883. The reversal of 13404738848 is 84883740431.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 2 ways, for example, as 13369834384 + 34904464 = 115628^2 + 5908^2 .

It is an ABA number since it can be written as A⋅BA, here for A=2, B=81868.

It is a Smith number, since the sum of its digits (50) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13404738796 and 13404738805.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 63529463 + ... + 63529673.

Almost surely, 213404738848 is an apocalyptic number.

It is an amenable number.

13404738848 is a deficient number, since it is larger than the sum of its proper divisors (13387688905).

13404738848 is an frugal number, since it uses more digits than its factorization.

13404738848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 626 (or 310 counting only the distinct ones).

The product of its (nonzero) digits is 2064384, while the sum is 50.

Multiplying 13404738848 by its sum of digits (50), we get a square (670236942400 = 8186802).

The spelling of 13404738848 in words is "thirteen billion, four hundred four million, seven hundred thirty-eight thousand, eight hundred forty-eight".

Divisors: 1 2 4 8 16 32 97 194 211 388 422 776 844 1552 1688 3104 3376 6752 9409 18818 20467 37636 40934 44521 75272 81868 89042 150544 163736 178084 301088 327472 356168 654944 712336 1424672 1985299 3970598 4318537 7941196 8637074 15882392 17274148 31764784 34548296 63529568 69096592 138193184 418898089 837796178 1675592356 3351184712 6702369424 13404738848