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1394809097 = 11523242449
BaseRepresentation
bin101001100100011…
…0001100100001001
310121012120122101012
41103020301210021
510324032342342
6350223333305
746364452553
oct12310614411
93535518335
101394809097
116563737a0
1232b151235
13192c81b36
14d33604d3
15826bbb82
hex53231909

1394809097 has 8 divisors (see below), whose sum is σ = 1524525600. Its totient is φ = 1265578560.

The previous prime is 1394809063. The next prime is 1394809099. The reversal of 1394809097 is 7909084931.

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 1394809097 - 210 = 1394808073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1394809099) 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, 115472 + ... + 126977.

It is an arithmetic number, because the mean of its divisors is an integer number (190565700).

Almost surely, 21394809097 is an apocalyptic number.

It is an amenable number.

1394809097 is a deficient number, since it is larger than the sum of its proper divisors (129716503).

1394809097 is a wasteful number, since it uses less digits than its factorization.

1394809097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 242983.

The product of its (nonzero) digits is 489888, while the sum is 50.

The square root of 1394809097 is about 37347.1430902017. The cubic root of 1394809097 is about 1117.3046093065.

The spelling of 1394809097 in words is "one billion, three hundred ninety-four million, eight hundred nine thousand, ninety-seven".

Divisors: 1 11 523 5753 242449 2666939 126800827 1394809097