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1321070 = 251719409
BaseRepresentation
bin101000010100001101110
32111010011112
411002201232
5314233240
644152022
714141342
oct5024156
92433145
101321070
118225a3
12538612
133733ca
14265622
151b1665
hex14286e

1321070 has 32 divisors (see below), whose sum is σ = 2656800. Its totient is φ = 470016.

The previous prime is 1321063. The next prime is 1321079. The reversal of 1321070 is 701231.

1321070 = T117 + T118 + ... + T211.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1321079) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3026 + ... + 3434.

It is an arithmetic number, because the mean of its divisors is an integer number (83025).

21321070 is an apocalyptic number.

1321070 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1321070 is an abundant number, since it is smaller than the sum of its proper divisors (1335730).

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

1321070 is a wasteful number, since it uses less digits than its factorization.

1321070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 452.

The product of its (nonzero) digits is 42, while the sum is 14.

The square root of 1321070 is about 1149.3780927093. The cubic root of 1321070 is about 109.7257631597.

The spelling of 1321070 in words is "one million, three hundred twenty-one thousand, seventy".

Divisors: 1 2 5 10 17 19 34 38 85 95 170 190 323 409 646 818 1615 2045 3230 4090 6953 7771 13906 15542 34765 38855 69530 77710 132107 264214 660535 1321070