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1995928 = 231137613
BaseRepresentation
bin111100111010010011000
310202101220021
413213102120
51002332203
6110440224
722652014
oct7472230
93671807
101995928
111143630
12803074
1354b62c
1439d544
152965bd
hex1e7498

1995928 has 32 divisors (see below), whose sum is σ = 4199760. Its totient is φ = 881280.

The previous prime is 1995913. The next prime is 1995937. The reversal of 1995928 is 8295991.

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 7 ways as a sum of consecutive naturals, for example, 2950 + ... + 3562.

21995928 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 1995928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2099880).

1995928 is an abundant number, since it is smaller than the sum of its proper divisors (2203832).

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

1995928 is a wasteful number, since it uses less digits than its factorization.

1995928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 667 (or 663 counting only the distinct ones).

The product of its digits is 58320, while the sum is 43.

The square root of 1995928 is about 1412.7731594279. The cubic root of 1995928 is about 125.9065402513.

The spelling of 1995928 in words is "one million, nine hundred ninety-five thousand, nine hundred twenty-eight".

Divisors: 1 2 4 8 11 22 37 44 74 88 148 296 407 613 814 1226 1628 2452 3256 4904 6743 13486 22681 26972 45362 53944 90724 181448 249491 498982 997964 1995928