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1289083148 = 221567205661
BaseRepresentation
bin100110011010101…
…1101100100001100
310022211122012122022
41030311131210030
510120001130043
6331525305312
743642011623
oct11465354414
93284565568
101289083148
11601721281
122bb865238
131770b4cc2
14c32bc6ba
1578285868
hex4cd5d90c

1289083148 has 12 divisors (see below), whose sum is σ = 2257346112. Its totient is φ = 644127120.

The previous prime is 1289083127. The next prime is 1289083163. The reversal of 1289083148 is 8413809821.

It is a junction number, because it is equal to n+sod(n) for n = 1289083099 and 1289083108.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 96563 + ... + 109098.

It is an arithmetic number, because the mean of its divisors is an integer number (188112176).

Almost surely, 21289083148 is an apocalyptic number.

It is an amenable number.

1289083148 is a deficient number, since it is larger than the sum of its proper divisors (968262964).

1289083148 is a wasteful number, since it uses less digits than its factorization.

1289083148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207232 (or 207230 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 44.

The square root of 1289083148 is about 35903.8040881464. The cubic root of 1289083148 is about 1088.3292722302.

The spelling of 1289083148 in words is "one billion, two hundred eighty-nine million, eighty-three thousand, one hundred forty-eight".

Divisors: 1 2 4 1567 3134 6268 205661 411322 822644 322270787 644541574 1289083148