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3084157 = 17181421
BaseRepresentation
bin1011110000111101111101
312210200200001
423300331331
51242143112
6150034301
735133466
oct13607575
95720601
103084157
11181719a
121048991
1383ca5b
145a3d6d
1540dc57
hex2f0f7d

3084157 has 4 divisors (see below), whose sum is σ = 3265596. Its totient is φ = 2902720.

The previous prime is 3084149. The next prime is 3084163. The reversal of 3084157 is 7514803.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7514803 = 31242413.

It can be written as a sum of positive squares in 2 ways, for example, as 1610361 + 1473796 = 1269^2 + 1214^2 .

It is a cyclic number.

It is not a de Polignac number, because 3084157 - 23 = 3084149 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 (3084127) 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, 90694 + ... + 90727.

It is an arithmetic number, because the mean of its divisors is an integer number (816399).

Almost surely, 23084157 is an apocalyptic number.

It is an amenable number.

3084157 is a deficient number, since it is larger than the sum of its proper divisors (181439).

3084157 is a wasteful number, since it uses less digits than its factorization.

3084157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181438.

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 3084157 is about 1756.1768134217. The cubic root of 3084157 is about 145.5611548800.

It can be divided in two parts, 308 and 4157, that added together give a triangular number (4465 = T94).

The spelling of 3084157 in words is "three million, eighty-four thousand, one hundred fifty-seven".

Divisors: 1 17 181421 3084157