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2161412 = 221149123
BaseRepresentation
bin1000001111101100000100
311001210220022
420033230010
51023131122
6114154312
724241331
oct10175404
94053808
102161412
1112469a0
12882998
135a8a56
14403988
152ca642
hex20fb04

2161412 has 12 divisors (see below), whose sum is σ = 4126416. Its totient is φ = 982440.

The previous prime is 2161409. The next prime is 2161417. The reversal of 2161412 is 2141612.

It is an alternating number because its digits alternate between even and odd.

It is not an unprimeable number, because it can be changed into a prime (2161417) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24518 + ... + 24605.

It is an arithmetic number, because the mean of its divisors is an integer number (343868).

22161412 is an apocalyptic number.

2161412 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

2161412 is a deficient number, since it is larger than the sum of its proper divisors (1965004).

2161412 is a wasteful number, since it uses less digits than its factorization.

2161412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49138 (or 49136 counting only the distinct ones).

The product of its digits is 96, while the sum is 17.

The square root of 2161412 is about 1470.1741393454. The cubic root of 2161412 is about 129.2942425052.

The spelling of 2161412 in words is "two million, one hundred sixty-one thousand, four hundred twelve".

Divisors: 1 2 4 11 22 44 49123 98246 196492 540353 1080706 2161412