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3142005 = 352931233
BaseRepresentation
bin1011111111000101110101
312220122000120
423333011311
51301021010
6151202153
735464236
oct13770565
95818016
103142005
1118566a9
121076359
13860199
145bb08d
15420e70
hex2ff175

3142005 has 32 divisors (see below), whose sum is σ = 5391360. Its totient is φ = 1559040.

The previous prime is 3141959. The next prime is 3142019. The reversal of 3142005 is 5002413.

It is not a de Polignac number, because 3142005 - 27 = 3141877 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13369 + ... + 13601.

It is an arithmetic number, because the mean of its divisors is an integer number (168480).

Almost surely, 23142005 is an apocalyptic number.

It is an amenable number.

3142005 is a deficient number, since it is larger than the sum of its proper divisors (2249355).

3142005 is a wasteful number, since it uses less digits than its factorization.

3142005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 301.

The product of its (nonzero) digits is 120, while the sum is 15.

The square root of 3142005 is about 1772.5701678636. The cubic root of 3142005 is about 146.4655962576.

Adding to 3142005 its reverse (5002413), we get a palindrome (8144418).

The spelling of 3142005 in words is "three million, one hundred forty-two thousand, five".

Divisors: 1 3 5 15 29 31 87 93 145 155 233 435 465 699 899 1165 2697 3495 4495 6757 7223 13485 20271 21669 33785 36115 101355 108345 209467 628401 1047335 3142005