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2945412 = 223281817
BaseRepresentation
bin1011001111000110000100
312112122100100
423033012010
51223223122
6143044100
734015131
oct13170604
95478310
102945412
111731a28
12ba0630
137c1862
14569588
153d2aac
hex2cf184

2945412 has 18 divisors (see below), whose sum is σ = 7445438. Its totient is φ = 981792.

The previous prime is 2945407. The next prime is 2945417. The reversal of 2945412 is 2145492.

It is an interprime number because it is at equal distance from previous prime (2945407) and next prime (2945417).

It can be written as a sum of positive squares in only one way, i.e., 1726596 + 1218816 = 1314^2 + 1104^2 .

It is a tau number, because it is divible by the number of its divisors (18).

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 (2945417) 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, 40873 + ... + 40944.

22945412 is an apocalyptic number.

It is an amenable number.

2945412 is an abundant number, since it is smaller than the sum of its proper divisors (4500026).

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

2945412 is a wasteful number, since it uses less digits than its factorization.

2945412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81827 (or 81822 counting only the distinct ones).

The product of its digits is 2880, while the sum is 27.

The square root of 2945412 is about 1716.2202655836. The cubic root of 2945412 is about 143.3448245099.

The spelling of 2945412 in words is "two million, nine hundred forty-five thousand, four hundred twelve".

Divisors: 1 2 3 4 6 9 12 18 36 81817 163634 245451 327268 490902 736353 981804 1472706 2945412