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1995070 = 257112591
BaseRepresentation
bin111100111000100111110
310202100201111
413213010332
51002320240
6110432234
722646350
oct7470476
93670644
101995070
111142a20
1280267a
1354b11c
1439d0d0
152961ea
hex1e713e

1995070 has 32 divisors (see below), whose sum is σ = 4478976. Its totient is φ = 621600.

The previous prime is 1995061. The next prime is 1995073. The reversal of 1995070 is 705991.

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 pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 526 + ... + 2065.

It is an arithmetic number, because the mean of its divisors is an integer number (139968).

21995070 is an apocalyptic number.

1995070 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1995070 is an abundant number, since it is smaller than the sum of its proper divisors (2483906).

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

1995070 is a wasteful number, since it uses less digits than its factorization.

1995070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2616.

The product of its (nonzero) digits is 2835, while the sum is 31.

The square root of 1995070 is about 1412.4694686966. The cubic root of 1995070 is about 125.8884962981. Note that the first 3 decimals are identical.

The spelling of 1995070 in words is "one million, nine hundred ninety-five thousand, seventy".

Divisors: 1 2 5 7 10 11 14 22 35 55 70 77 110 154 385 770 2591 5182 12955 18137 25910 28501 36274 57002 90685 142505 181370 199507 285010 399014 997535 1995070