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2143488 = 2832791
BaseRepresentation
bin1000001011010100000000
311000220022110
420023110000
51022042423
6113535320
724135144
oct10132400
94026273
102143488
111234486
12874540
135a0849
143db224
152c5193
hex20b500

2143488 has 36 divisors (see below), whose sum is σ = 5706848. Its totient is φ = 714240.

The previous prime is 2143487. The next prime is 2143489. The reversal of 2143488 is 8843412.

It is an interprime number because it is at equal distance from previous prime (2143487) and next prime (2143489).

It is a super-2 number, since 2×21434882 = 9189081612288, which contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2143481) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 628 + ... + 2163.

22143488 is an apocalyptic number.

It is an amenable number.

2143488 is an abundant number, since it is smaller than the sum of its proper divisors (3563360).

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

2143488 is an equidigital number, since it uses as much as digits as its factorization.

2143488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2810 (or 2796 counting only the distinct ones).

The product of its digits is 6144, while the sum is 30.

The square root of 2143488 is about 1464.0655723020. The cubic root of 2143488 is about 128.9358493608.

The spelling of 2143488 in words is "two million, one hundred forty-three thousand, four hundred eighty-eight".

Divisors: 1 2 3 4 6 8 12 16 24 32 48 64 96 128 192 256 384 768 2791 5582 8373 11164 16746 22328 33492 44656 66984 89312 133968 178624 267936 357248 535872 714496 1071744 2143488