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1316089789 = 71523123449
BaseRepresentation
bin100111001110001…
…1110111110111101
310101201110021210021
41032130132332331
510143404333124
6334332212141
744420402320
oct11634367675
93351407707
101316089789
11615997813
1230890a051
1317c87c671
14c6b0c7b7
157a81c7e4
hex4e71efbd

1316089789 has 8 divisors (see below), whose sum is σ = 1505102400. Its totient is φ = 1127327136.

The previous prime is 1316089769. The next prime is 1316089829. The reversal of 1316089789 is 9879806131.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1316089789 - 25 = 1316089757 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1316089769) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51064 + ... + 72385.

It is an arithmetic number, because the mean of its divisors is an integer number (188137800).

Almost surely, 21316089789 is an apocalyptic number.

It is an amenable number.

1316089789 is a deficient number, since it is larger than the sum of its proper divisors (189012611).

1316089789 is a wasteful number, since it uses less digits than its factorization.

1316089789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124979.

The product of its (nonzero) digits is 653184, while the sum is 52.

The square root of 1316089789 is about 36277.9518302784. The cubic root of 1316089789 is about 1095.8770699342.

The spelling of 1316089789 in words is "one billion, three hundred sixteen million, eighty-nine thousand, seven hundred eighty-nine".

Divisors: 1 7 1523 10661 123449 864143 188012827 1316089789