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3142909 = 751117
BaseRepresentation
bin1011111111010011111101
312220200021001
423333103331
51301033114
6151210301
735500000
oct13772375
95820231
103142909
111857350
121076991
13860713
145bb537
15421374
hex2ff4fd

3142909 has 24 divisors (see below), whose sum is σ = 4235328. Its totient is φ = 2304960.

The previous prime is 3142907. The next prime is 3142939. The reversal of 3142909 is 9092413.

It is a happy number.

It is not a de Polignac number, because 3142909 - 21 = 3142907 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3142901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 184869 + ... + 184885.

It is an arithmetic number, because the mean of its divisors is an integer number (176472).

Almost surely, 23142909 is an apocalyptic number.

It is an amenable number.

3142909 is a deficient number, since it is larger than the sum of its proper divisors (1092419).

3142909 is an frugal number, since it uses more digits than its factorization.

3142909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63 (or 35 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 28.

The square root of 3142909 is about 1772.8251464823. The cubic root of 3142909 is about 146.4796416631.

It can be divided in two parts, 314 and 2909, that added together give a palindrome (3223).

The spelling of 3142909 in words is "three million, one hundred forty-two thousand, nine hundred nine".

Divisors: 1 7 11 17 49 77 119 187 343 539 833 1309 2401 3773 5831 9163 16807 26411 40817 64141 184877 285719 448987 3142909