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1970023 = 11792267
BaseRepresentation
bin111100000111101100111
310201002100211
413200331213
51001020043
6110120251
722513336
oct7407547
93632324
101970023
111126120
127b0087
1353c8c3
14393d1d
1528da9d
hex1e0f67

1970023 has 8 divisors (see below), whose sum is σ = 2177280. Its totient is φ = 1767480.

The previous prime is 1969997. The next prime is 1970029. The reversal of 1970023 is 3200791.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1970023 - 29 = 1969511 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1969976 and 1970003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1970029) 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 7 ways as a sum of consecutive naturals, for example, 265 + ... + 2002.

It is an arithmetic number, because the mean of its divisors is an integer number (272160).

21970023 is an apocalyptic number.

1970023 is a deficient number, since it is larger than the sum of its proper divisors (207257).

1970023 is a wasteful number, since it uses less digits than its factorization.

1970023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2357.

The product of its (nonzero) digits is 378, while the sum is 22.

The square root of 1970023 is about 1403.5750781487. The cubic root of 1970023 is about 125.3594560069.

The spelling of 1970023 in words is "one million, nine hundred seventy thousand, twenty-three".

Divisors: 1 11 79 869 2267 24937 179093 1970023