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2141988 = 2231031733
BaseRepresentation
bin1000001010111100100100
311000211020220
420022330210
51022020423
6113524340
724130602
oct10127444
94024226
102141988
111233342
128736b0
1359cc64
143da872
152c49e3
hex20af24

2141988 has 24 divisors (see below), whose sum is σ = 5049408. Its totient is φ = 706656.

The previous prime is 2141987. The next prime is 2142001. The reversal of 2141988 is 8891412.

It is a super-2 number, since 2×21419882 = 9176225184288, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2141987) 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, 370 + ... + 2102.

It is an arithmetic number, because the mean of its divisors is an integer number (210392).

22141988 is an apocalyptic number.

It is an amenable number.

2141988 is an abundant number, since it is smaller than the sum of its proper divisors (2907420).

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

2141988 is a wasteful number, since it uses less digits than its factorization.

2141988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1843 (or 1841 counting only the distinct ones).

The product of its digits is 4608, while the sum is 33.

The square root of 2141988 is about 1463.5532105120. The cubic root of 2141988 is about 128.9057661653.

The spelling of 2141988 in words is "two million, one hundred forty-one thousand, nine hundred eighty-eight".

Divisors: 1 2 3 4 6 12 103 206 309 412 618 1236 1733 3466 5199 6932 10398 20796 178499 356998 535497 713996 1070994 2141988