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1168920697 = 71723427081
BaseRepresentation
bin100010110101100…
…0101000001111001
310000110112022202011
41011223011001321
54343220430242
6311554005521
740652443030
oct10553050171
93013468664
101168920697
1154a90946a
122875768a1
13158232169
14b135d717
156c94bd17
hex45ac5079

1168920697 has 16 divisors (see below), whose sum is σ = 1475995392. Its totient is φ = 901992960.

The previous prime is 1168920677. The next prime is 1168920733. The reversal of 1168920697 is 7960298611.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-1168920697 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1168920697.

It is not an unprimeable number, because it can be changed into a prime (1168920617) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 210804 + ... + 216277.

It is an arithmetic number, because the mean of its divisors is an integer number (92249712).

Almost surely, 21168920697 is an apocalyptic number.

1168920697 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

1168920697 is a deficient number, since it is larger than the sum of its proper divisors (307074695).

1168920697 is a wasteful number, since it uses less digits than its factorization.

1168920697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 427128.

The product of its (nonzero) digits is 326592, while the sum is 49.

The square root of 1168920697 is about 34189.4822569749. The cubic root of 1168920697 is about 1053.4041285158.

The spelling of 1168920697 in words is "one billion, one hundred sixty-eight million, nine hundred twenty thousand, six hundred ninety-seven".

Divisors: 1 7 17 23 119 161 391 2737 427081 2989567 7260377 9822863 50822639 68760041 166988671 1168920697