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992980 = 225131379
BaseRepresentation
bin11110010011011010100
31212110010001
43302123110
5223233410
633141044
711303662
oct3623324
91773101
10992980
1161904a
123ba784
13289c81
141bbc32
1514933a
hexf26d4

992980 has 24 divisors (see below), whose sum is σ = 2106720. Its totient is φ = 393120.

The previous prime is 992963. The next prime is 992983. The reversal of 992980 is 89299.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (992983) by changing a digit.

992980 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2431 + ... + 2809.

It is an arithmetic number, because the mean of its divisors is an integer number (87780).

2992980 is an apocalyptic number.

It is an amenable number.

992980 is an abundant number, since it is smaller than the sum of its proper divisors (1113740).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

992980 is a wasteful number, since it uses less digits than its factorization.

992980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 519 (or 517 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 37.

The square root of 992980 is about 996.4838182329. The cubic root of 992980 is about 99.7654502945.

The spelling of 992980 in words is "nine hundred ninety-two thousand, nine hundred eighty".

Divisors: 1 2 4 5 10 20 131 262 379 524 655 758 1310 1516 1895 2620 3790 7580 49649 99298 198596 248245 496490 992980