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1394789885 = 51361920483
BaseRepresentation
bin101001100100010…
…1100110111111101
310121012112200000122
41103020230313331
510324031234020
6350223104325
746364342546
oct12310546775
93535480018
101394789885
11656360315
1232b1420a5
13192c76178
14d33574cd
15826b6125
hex5322cdfd

1394789885 has 8 divisors (see below), whose sum is σ = 1673952480. Its totient is φ = 1115695504.

The previous prime is 1394789873. The next prime is 1394789917. The reversal of 1394789885 is 5889874931.

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 1394789885 - 26 = 1394789821 is a prime.

It is a congruent number.

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, 57854 + ... + 78336.

It is an arithmetic number, because the mean of its divisors is an integer number (209244060).

Almost surely, 21394789885 is an apocalyptic number.

It is an amenable number.

1394789885 is a deficient number, since it is larger than the sum of its proper divisors (279162595).

1394789885 is a wasteful number, since it uses less digits than its factorization.

1394789885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34107.

The product of its digits is 17418240, while the sum is 62.

The square root of 1394789885 is about 37346.8858808870. The cubic root of 1394789885 is about 1117.2994793919.

The spelling of 1394789885 in words is "one billion, three hundred ninety-four million, seven hundred eighty-nine thousand, eight hundred eighty-five".

Divisors: 1 5 13619 20483 68095 102415 278957977 1394789885