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2142933 = 313232389
BaseRepresentation
bin1000001011001011010101
311000212112220
420023023111
51022033213
6113532553
724133422
oct10131325
94025486
102142933
111234021
12874159
135a0510
143dad49
152c4e23
hex20b2d5

2142933 has 16 divisors (see below), whose sum is σ = 3212160. Its totient is φ = 1260864.

The previous prime is 2142923. The next prime is 2142941. The reversal of 2142933 is 3392412.

It is not a de Polignac number, because 2142933 - 28 = 2142677 is a prime.

2142933 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2142923) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 298 + ... + 2091.

It is an arithmetic number, because the mean of its divisors is an integer number (200760).

22142933 is an apocalyptic number.

2142933 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

2142933 is a deficient number, since it is larger than the sum of its proper divisors (1069227).

2142933 is a wasteful number, since it uses less digits than its factorization.

2142933 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2428.

The product of its digits is 1296, while the sum is 24.

The square root of 2142933 is about 1463.8760193404. The cubic root of 2142933 is about 128.9247202147.

The spelling of 2142933 in words is "two million, one hundred forty-two thousand, nine hundred thirty-three".

Divisors: 1 3 13 23 39 69 299 897 2389 7167 31057 54947 93171 164841 714311 2142933