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3051997 = 13234769
BaseRepresentation
bin1011101001000111011101
312202001112221
423221013131
51240130442
6145225341
734640644
oct13510735
95661487
103051997
1117a5013
121032251
1382b220
1459635b
15404467
hex2e91dd

3051997 has 4 divisors (see below), whose sum is σ = 3286780. Its totient is φ = 2817216.

The previous prime is 3051977. The next prime is 3052003. The reversal of 3051997 is 7991503.

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

It can be written as a sum of positive squares in 2 ways, for example, as 527076 + 2524921 = 726^2 + 1589^2 .

It is a cyclic number.

It is not a de Polignac number, because 3051997 - 27 = 3051869 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3051947) 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, 117372 + ... + 117397.

It is an arithmetic number, because the mean of its divisors is an integer number (821695).

Almost surely, 23051997 is an apocalyptic number.

It is an amenable number.

3051997 is a deficient number, since it is larger than the sum of its proper divisors (234783).

3051997 is a wasteful number, since it uses less digits than its factorization.

3051997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234782.

The product of its (nonzero) digits is 8505, while the sum is 34.

The square root of 3051997 is about 1746.9965655376. The cubic root of 3051997 is about 145.0534404683.

The spelling of 3051997 in words is "three million, fifty-one thousand, nine hundred ninety-seven".

Divisors: 1 13 234769 3051997