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2142492 = 2231116231
BaseRepresentation
bin1000001011000100011100
311000211221120
420023010130
51022024432
6113530540
724132222
oct10130434
94024846
102142492
111233760
12873a50
135a0261
143dab12
152c4c2c
hex20b11c

2142492 has 24 divisors (see below), whose sum is σ = 5453952. Its totient is φ = 649200.

The previous prime is 2142463. The next prime is 2142499. The reversal of 2142492 is 2942412.

2142492 = 5142 + 5152 + ... + 5212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2142499) 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, 7984 + ... + 8247.

It is an arithmetic number, because the mean of its divisors is an integer number (227248).

22142492 is an apocalyptic number.

2142492 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

2142492 is an abundant number, since it is smaller than the sum of its proper divisors (3311460).

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

2142492 is a wasteful number, since it uses less digits than its factorization.

2142492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16249 (or 16247 counting only the distinct ones).

The product of its digits is 1152, while the sum is 24.

The square root of 2142492 is about 1463.7253840800. The cubic root of 2142492 is about 128.9158756853.

The spelling of 2142492 in words is "two million, one hundred forty-two thousand, four hundred ninety-two".

Divisors: 1 2 3 4 6 11 12 22 33 44 66 132 16231 32462 48693 64924 97386 178541 194772 357082 535623 714164 1071246 2142492