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992740 = 225721013
BaseRepresentation
bin11110010010111100100
31212102210011
43302113210
5223231430
633140004
711303200
oct3622744
91772704
10992740
11618951
123ba604
13289b28
141bbb00
1514922a
hexf25e4

992740 has 36 divisors (see below), whose sum is σ = 2427516. Its totient is φ = 340032.

The previous prime is 992737. The next prime is 992777. The reversal of 992740 is 47299.

It can be written as a sum of positive squares in 2 ways, for example, as 112896 + 879844 = 336^2 + 938^2 .

It is an Ulam number.

It is a congruent number.

It is an unprimeable 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 11 ways as a sum of consecutive naturals, for example, 474 + ... + 1486.

It is an arithmetic number, because the mean of its divisors is an integer number (67431).

2992740 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 992740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1213758).

992740 is an abundant number, since it is smaller than the sum of its proper divisors (1434776).

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

992740 is a wasteful number, since it uses less digits than its factorization.

992740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1036 (or 1027 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 31.

The square root of 992740 is about 996.3633875249. The cubic root of 992740 is about 99.7574119864.

The spelling of 992740 in words is "nine hundred ninety-two thousand, seven hundred forty".

Divisors: 1 2 4 5 7 10 14 20 28 35 49 70 98 140 196 245 490 980 1013 2026 4052 5065 7091 10130 14182 20260 28364 35455 49637 70910 99274 141820 198548 248185 496370 992740