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992957 = 7141851
BaseRepresentation
bin11110010011010111101
31212110002012
43302122331
5223233312
633141005
711303630
oct3623275
91773065
10992957
11619029
123ba765
13289c64
141bbc17
15149322
hexf26bd

992957 has 4 divisors (see below), whose sum is σ = 1134816. Its totient is φ = 851100.

The previous prime is 992947. The next prime is 992963. The reversal of 992957 is 759299.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 759299 = 2333013.

It is a cyclic number.

It is not a de Polignac number, because 992957 - 24 = 992941 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 (992917) 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, 70919 + ... + 70932.

It is an arithmetic number, because the mean of its divisors is an integer number (283704).

2992957 is an apocalyptic number.

It is an amenable number.

992957 is a deficient number, since it is larger than the sum of its proper divisors (141859).

992957 is a wasteful number, since it uses less digits than its factorization.

992957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141858.

The product of its digits is 51030, while the sum is 41.

The square root of 992957 is about 996.4722775873. The cubic root of 992957 is about 99.7646800127.

The spelling of 992957 in words is "nine hundred ninety-two thousand, nine hundred fifty-seven".

Divisors: 1 7 141851 992957