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2144620 = 225157683
BaseRepresentation
bin1000001011100101101100
311000221212101
420023211230
51022111440
6113544444
724141352
oct10134554
94027771
102144620
111235315
12875124
135a120a
143db7d2
152c569a
hex20b96c

2144620 has 24 divisors (see below), whose sum is σ = 4539024. Its totient is φ = 851136.

The previous prime is 2144617. The next prime is 2144621. The reversal of 2144620 is 264412.

It is not an unprimeable number, because it can be changed into a prime (2144621) 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, 2799 + ... + 3481.

It is an arithmetic number, because the mean of its divisors is an integer number (189126).

22144620 is an apocalyptic number.

2144620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2144620 is an abundant number, since it is smaller than the sum of its proper divisors (2394404).

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

2144620 is a wasteful number, since it uses less digits than its factorization.

2144620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 849 (or 847 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 2144620 is about 1464.4521159806. The cubic root of 2144620 is about 128.9585428547.

The spelling of 2144620 in words is "two million, one hundred forty-four thousand, six hundred twenty".

Divisors: 1 2 4 5 10 20 157 314 628 683 785 1366 1570 2732 3140 3415 6830 13660 107231 214462 428924 536155 1072310 2144620