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3012149 = 72353353
BaseRepresentation
bin1011011111011000110101
312200000220002
423133120311
51232342044
6144321045
734413530
oct13373065
95600802
103012149
111778088
121013185
1381604a
14585a17
153e774e
hex2df635

3012149 has 16 divisors (see below), whose sum is σ = 3670272. Its totient is φ = 2416128.

The previous prime is 3012137. The next prime is 3012161. The reversal of 3012149 is 9412103.

It is an interprime number because it is at equal distance from previous prime (3012137) and next prime (3012161).

It is a cyclic number.

It is not a de Polignac number, because 3012149 - 212 = 3008053 is a prime.

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

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3012149.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3012109) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8357 + ... + 8709.

It is an arithmetic number, because the mean of its divisors is an integer number (229392).

Almost surely, 23012149 is an apocalyptic number.

It is an amenable number.

3012149 is a deficient number, since it is larger than the sum of its proper divisors (658123).

3012149 is a wasteful number, since it uses less digits than its factorization.

3012149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 436.

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 3012149 is about 1735.5543782895. The cubic root of 3012149 is about 144.4193824807.

The spelling of 3012149 in words is "three million, twelve thousand, one hundred forty-nine".

Divisors: 1 7 23 53 161 353 371 1219 2471 8119 8533 18709 56833 130963 430307 3012149