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2149460 = 225107473
BaseRepresentation
bin1000001100110001010100
311001012111122
420030301110
51022240320
6114023112
724161435
oct10146124
94035448
102149460
111238a15
12877a98
135a3491
143dd48c
152c6d25
hex20cc54

2149460 has 12 divisors (see below), whose sum is σ = 4513908. Its totient is φ = 859776.

The previous prime is 2149453. The next prime is 2149471. The reversal of 2149460 is 649412.

It can be written as a sum of positive squares in 2 ways, for example, as 521284 + 1628176 = 722^2 + 1276^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53717 + ... + 53756.

It is an arithmetic number, because the mean of its divisors is an integer number (376159).

22149460 is an apocalyptic number.

2149460 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2149460 is an abundant number, since it is smaller than the sum of its proper divisors (2364448).

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

2149460 is a wasteful number, since it uses less digits than its factorization.

2149460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107482 (or 107480 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 2149460 is about 1466.1036798262. The cubic root of 2149460 is about 129.0554816129.

The spelling of 2149460 in words is "two million, one hundred forty-nine thousand, four hundred sixty".

Divisors: 1 2 4 5 10 20 107473 214946 429892 537365 1074730 2149460