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2997979 = 3197997
BaseRepresentation
bin1011011011111011011011
312122022110021
423123323123
51231413404
6144131311
734324315
oct13337333
95568407
102997979
111768476
121006b37
1380c76a
145807b5
153e3454
hex2dbedb

2997979 has 8 divisors (see below), whose sum is σ = 3129728. Its totient is φ = 2868480.

The previous prime is 2997977. The next prime is 2997997. The reversal of 2997979 is 9797992.

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 2997979 - 21 = 2997977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2997977) 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, 2509 + ... + 3505.

It is an arithmetic number, because the mean of its divisors is an integer number (391216).

22997979 is an apocalyptic number.

2997979 is a deficient number, since it is larger than the sum of its proper divisors (131749).

2997979 is an equidigital number, since it uses as much as digits as its factorization.

2997979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1125.

The product of its digits is 642978, while the sum is 52.

The square root of 2997979 is about 1731.4672968324. The cubic root of 2997979 is about 144.1925632401.

The spelling of 2997979 in words is "two million, nine hundred ninety-seven thousand, nine hundred seventy-nine".

Divisors: 1 31 97 997 3007 30907 96709 2997979