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3143355145 = 572235031109
BaseRepresentation
bin1011101101011011…
…1100101100001001
322010001202222121221
42323112330230021
522414144331040
61235525002041
7140616035500
oct27326745411
98101688557
103143355145
111373384277
12738853321
133b12c7a78
1421b681837
15135e5e74a
hexbb5bcb09

3143355145 has 48 divisors (see below), whose sum is σ = 4591883520. Its totient is φ = 2055774336.

The previous prime is 3143355139. The next prime is 3143355161. The reversal of 3143355145 is 5415533413.

It is a de Polignac number, because none of the positive numbers 2k-3143355145 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3143355145.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2833851 + ... + 2834959.

It is an arithmetic number, because the mean of its divisors is an integer number (95664240).

Almost surely, 23143355145 is an apocalyptic number.

3143355145 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

3143355145 is a deficient number, since it is larger than the sum of its proper divisors (1448528375).

3143355145 is a wasteful number, since it uses less digits than its factorization.

3143355145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1654 (or 1647 counting only the distinct ones).

The product of its digits is 54000, while the sum is 34.

The square root of 3143355145 is about 56065.6324765894. The cubic root of 3143355145 is about 1464.8657240442.

Adding to 3143355145 its reverse (5415533413), we get a palindrome (8558888558).

The spelling of 3143355145 in words is "three billion, one hundred forty-three million, three hundred fifty-five thousand, one hundred forty-five".

Divisors: 1 5 7 23 35 49 115 161 245 503 805 1109 1127 2515 3521 5545 5635 7763 11569 17605 24647 25507 38815 54341 57845 80983 123235 127535 178549 271705 404915 557827 566881 892745 1249843 2789135 2834405 3904789 6249215 12830021 19523945 27333523 64150105 89810147 136667615 449050735 628671029 3143355145