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2171088 = 243215077
BaseRepresentation
bin1000010010000011010000
311002022011200
420102003100
51023433323
6114311200
724311463
oct10220320
94068150
102171088
111253197
12888500
135b028a
144072da
152cd443
hex2120d0

2171088 has 30 divisors (see below), whose sum is σ = 6076434. Its totient is φ = 723648.

The previous prime is 2171077. The next prime is 2171089. The reversal of 2171088 is 8801712.

It can be written as a sum of positive squares in only one way, i.e., 1272384 + 898704 = 1128^2 + 948^2 .

It is a nialpdrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2171089) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7395 + ... + 7682.

22171088 is an apocalyptic number.

It is an amenable number.

2171088 is an abundant number, since it is smaller than the sum of its proper divisors (3905346).

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

2171088 is a wasteful number, since it uses less digits than its factorization.

2171088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15091 (or 15082 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 27.

The square root of 2171088 is about 1473.4612312511. The cubic root of 2171088 is about 129.4868926275.

The spelling of 2171088 in words is "two million, one hundred seventy-one thousand, eighty-eight".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 36 48 72 144 15077 30154 45231 60308 90462 120616 135693 180924 241232 271386 361848 542772 723696 1085544 2171088