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2921108345 = 54179180371
BaseRepresentation
bin1010111000011100…
…1001001101111001
321112120120200022222
42232013021031321
521440300431340
61201505253425
7132250003601
oct25607111571
97476520288
102921108345
111269986a31
12696334275
1337725179c
141d9d4bc01
151216ad8b5
hexae1c9379

2921108345 has 16 divisors (see below), whose sum is σ = 3636299520. Its totient is φ = 2251017600.

The previous prime is 2921108321. The next prime is 2921108363. The reversal of 2921108345 is 5438011292.

It is not a de Polignac number, because 2921108345 - 222 = 2916914041 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 73991 + ... + 106380.

It is an arithmetic number, because the mean of its divisors is an integer number (227268720).

Almost surely, 22921108345 is an apocalyptic number.

It is an amenable number.

2921108345 is a deficient number, since it is larger than the sum of its proper divisors (715191175).

2921108345 is a wasteful number, since it uses less digits than its factorization.

2921108345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180496.

The product of its (nonzero) digits is 17280, while the sum is 35.

The square root of 2921108345 is about 54047.2787936636. The cubic root of 2921108345 is about 1429.4947185440.

The spelling of 2921108345 in words is "two billion, nine hundred twenty-one million, one hundred eight thousand, three hundred forty-five".

Divisors: 1 5 41 79 205 395 3239 16195 180371 901855 7395211 14249309 36976055 71246545 584221669 2921108345