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1088196389 = 71391118393
BaseRepresentation
bin100000011011100…
…1000111100100101
32210211122002210222
41000313020330211
54212034241024
6255551454125
735652342140
oct10067107445
92724562728
101088196389
11509293065
12264527345
131445aa1b7
14a4749057
156580385e
hex40dc8f25

1088196389 has 8 divisors (see below), whose sum is σ = 1252601280. Its totient is φ = 926028576.

The previous prime is 1088196353. The next prime is 1088196391. The reversal of 1088196389 is 9836918801.

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 1088196389 - 212 = 1088192293 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1088196389.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1088196349) 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, 558224 + ... + 560169.

It is an arithmetic number, because the mean of its divisors is an integer number (156575160).

Almost surely, 21088196389 is an apocalyptic number.

It is an amenable number.

1088196389 is a deficient number, since it is larger than the sum of its proper divisors (164404891).

1088196389 is a wasteful number, since it uses less digits than its factorization.

1088196389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1118539.

The product of its (nonzero) digits is 746496, while the sum is 53.

The square root of 1088196389 is about 32987.8218286688. The cubic root of 1088196389 is about 1028.5745162927.

The spelling of 1088196389 in words is "one billion, eighty-eight million, one hundred ninety-six thousand, three hundred eighty-nine".

Divisors: 1 7 139 973 1118393 7828751 155456627 1088196389