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2143379 = 71272411
BaseRepresentation
bin1000001011010010010011
311000220011102
420023102103
51022042004
6113535015
724134630
oct10132223
94026142
102143379
111234397
1287446b
135a0794
143db187
152c511e
hex20b493

2143379 has 8 divisors (see below), whose sum is σ = 2469888. Its totient is φ = 1821960.

The previous prime is 2143369. The next prime is 2143381. The reversal of 2143379 is 9733412.

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

It is not a de Polignac number, because 2143379 - 212 = 2139283 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2143319) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 317 + ... + 2094.

It is an arithmetic number, because the mean of its divisors is an integer number (308736).

22143379 is an apocalyptic number.

2143379 is a deficient number, since it is larger than the sum of its proper divisors (326509).

2143379 is a wasteful number, since it uses less digits than its factorization.

It is an anagram of its base 11 representation: 2143379 = (1234397)11.

2143379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2545.

The product of its digits is 4536, while the sum is 29.

The square root of 2143379 is about 1464.0283467201. The cubic root of 2143379 is about 128.9336637883.

It can be divided in two parts, 21433 and 79, that added together give a palindrome (21512).

The spelling of 2143379 in words is "two million, one hundred forty-three thousand, three hundred seventy-nine".

Divisors: 1 7 127 889 2411 16877 306197 2143379