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1995071 = 1343283
BaseRepresentation
bin111100111000100111111
310202100201112
413213010333
51002320241
6110432235
722646351
oct7470477
93670645
101995071
111142a21
1280267b
1354b120
1439d0d1
152961eb
hex1e713f

1995071 has 12 divisors (see below), whose sum is σ = 2226168. Its totient is φ = 1777104.

The previous prime is 1995061. The next prime is 1995073. The reversal of 1995071 is 1705991.

It is not a de Polignac number, because 1995071 - 214 = 1978687 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 (1995073) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23996 + ... + 24078.

It is an arithmetic number, because the mean of its divisors is an integer number (185514).

21995071 is an apocalyptic number.

1995071 is a deficient number, since it is larger than the sum of its proper divisors (231097).

1995071 is an equidigital number, since it uses as much as digits as its factorization.

1995071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182 (or 139 counting only the distinct ones).

The product of its (nonzero) digits is 2835, while the sum is 32.

The square root of 1995071 is about 1412.4698226865. The cubic root of 1995071 is about 125.8885173313. Note that the first 3 decimals are identical.

The spelling of 1995071 in words is "one million, nine hundred ninety-five thousand, seventy-one".

Divisors: 1 13 43 83 559 1079 1849 3569 24037 46397 153467 1995071