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2956971 = 3985657
BaseRepresentation
bin1011010001111010101011
312120020012110
423101322223
51224110341
6143213403
734063623
oct13217253
95506173
102956971
11173a686
12ba7263
137c6bb4
1456d883
153d6216
hex2d1eab

2956971 has 4 divisors (see below), whose sum is σ = 3942632. Its totient is φ = 1971312.

The previous prime is 2956969. The next prime is 2956973. The reversal of 2956971 is 1796592.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (2956969) and next prime (2956973).

It is not a de Polignac number, because 2956971 - 21 = 2956969 is a prime.

It is a D-number.

It is a Duffinian number.

2956971 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2956973) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 492826 + ... + 492831.

It is an arithmetic number, because the mean of its divisors is an integer number (985658).

22956971 is an apocalyptic number.

2956971 is a deficient number, since it is larger than the sum of its proper divisors (985661).

2956971 is an equidigital number, since it uses as much as digits as its factorization.

2956971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 985660.

The product of its digits is 34020, while the sum is 39.

The square root of 2956971 is about 1719.5845428475. The cubic root of 2956971 is about 143.5320942998.

The spelling of 2956971 in words is "two million, nine hundred fifty-six thousand, nine hundred seventy-one".

Divisors: 1 3 985657 2956971