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2797749097 = 111397120149
BaseRepresentation
bin1010011011000010…
…0100001101101001
321012222110101020221
42212300210031221
521212210432342
61141341250041
7126221321623
oct24660441551
97188411227
102797749097
111206290340
12660b63921
1335781c850
141c77d9c13
15115942a67
hexa6c24369

2797749097 has 16 divisors (see below), whose sum is σ = 3290414400. Its totient is φ = 2345227200.

The previous prime is 2797749067. The next prime is 2797749113. The reversal of 2797749097 is 7909477972.

It is a cyclic number.

It is not a de Polignac number, because 2797749097 - 211 = 2797747049 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2797749067) 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, 128779 + ... + 148927.

It is an arithmetic number, because the mean of its divisors is an integer number (205650900).

Almost surely, 22797749097 is an apocalyptic number.

It is an amenable number.

2797749097 is a deficient number, since it is larger than the sum of its proper divisors (492665303).

2797749097 is a wasteful number, since it uses less digits than its factorization.

2797749097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21144.

The product of its (nonzero) digits is 14002632, while the sum is 61.

The square root of 2797749097 is about 52893.7529109062. The cubic root of 2797749097 is about 1409.0819597839.

The spelling of 2797749097 in words is "two billion, seven hundred ninety-seven million, seven hundred forty-nine thousand, ninety-seven".

Divisors: 1 11 13 143 971 10681 12623 20149 138853 221639 261937 2881307 19564679 215211469 254340827 2797749097