Search a number
-
+
3125071 = 16718713
BaseRepresentation
bin1011111010111101001111
312212202210101
423322331033
51300000241
6150551531
735363665
oct13727517
95782711
103125071
111844a04
1210685a7
13855571
145b4c35
1541ae31
hex2faf4f

3125071 has 4 divisors (see below), whose sum is σ = 3143952. Its totient is φ = 3106192.

The previous prime is 3125051. The next prime is 3125099. The reversal of 3125071 is 1705213.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1705213 = 3115483.

It is a cyclic number.

It is not a de Polignac number, because 3125071 - 27 = 3124943 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 (3125021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9190 + ... + 9523.

It is an arithmetic number, because the mean of its divisors is an integer number (785988).

Almost surely, 23125071 is an apocalyptic number.

3125071 is a deficient number, since it is larger than the sum of its proper divisors (18881).

3125071 is a wasteful number, since it uses less digits than its factorization.

3125071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18880.

The product of its (nonzero) digits is 210, while the sum is 19.

The square root of 3125071 is about 1767.7870346849. The cubic root of 3125071 is about 146.2019941303.

The spelling of 3125071 in words is "three million, one hundred twenty-five thousand, seventy-one".

Divisors: 1 167 18713 3125071