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2146140 = 2232511923
BaseRepresentation
bin1000001011111101011100
311001000221200
420023331130
51022134030
6113555500
724145653
oct10137534
94030850
102146140
111236477
12875b90
135a1b09
143dc19a
152c5d60
hex20bf5c

2146140 has 36 divisors (see below), whose sum is σ = 6510504. Its totient is φ = 572256.

The previous prime is 2146139. The next prime is 2146141. The reversal of 2146140 is 416412.

It is an interprime number because it is at equal distance from previous prime (2146139) and next prime (2146141).

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2146141) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5782 + ... + 6141.

22146140 is an apocalyptic number.

2146140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2146140 is an abundant number, since it is smaller than the sum of its proper divisors (4364364).

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

2146140 is a wasteful number, since it uses less digits than its factorization.

2146140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11938 (or 11933 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 2146140 is about 1464.9709894739. The cubic root of 2146140 is about 128.9890021271.

The spelling of 2146140 in words is "two million, one hundred forty-six thousand, one hundred forty".

Divisors: 1 2 3 4 5 6 9 10 12 15 18 20 30 36 45 60 90 180 11923 23846 35769 47692 59615 71538 107307 119230 143076 178845 214614 238460 357690 429228 536535 715380 1073070 2146140