Search a number
-
+
3102155125 = 53147116871
BaseRepresentation
bin1011100011100111…
…0010000101110101
322000012020210211021
42320321302011311
522323122431000
61231453541141
7136605612016
oct27071620565
98005223737
103102155125
1113520a4073
12726aa47b1
133a5900c64
14215dd900d
1513252211a
hexb8e72175

3102155125 has 16 divisors (see below), whose sum is σ = 3874351104. Its totient is φ = 2479890000.

The previous prime is 3102155123. The next prime is 3102155167. The reversal of 3102155125 is 5215512013.

It is not a de Polignac number, because 3102155125 - 21 = 3102155123 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3102155125.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3102155123) 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 15 ways as a sum of consecutive naturals, for example, 175440 + ... + 192310.

It is an arithmetic number, because the mean of its divisors is an integer number (242146944).

Almost surely, 23102155125 is an apocalyptic number.

It is an amenable number.

3102155125 is a deficient number, since it is larger than the sum of its proper divisors (772195979).

3102155125 is a wasteful number, since it uses less digits than its factorization.

3102155125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18357 (or 18347 counting only the distinct ones).

The product of its (nonzero) digits is 1500, while the sum is 25.

The square root of 3102155125 is about 55696.9938596330. The cubic root of 3102155125 is about 1458.4375486522.

Adding to 3102155125 its reverse (5215512013), we get a palindrome (8317667138).

The spelling of 3102155125 in words is "three billion, one hundred two million, one hundred fifty-five thousand, one hundred twenty-five".

Divisors: 1 5 25 125 1471 7355 16871 36775 84355 183875 421775 2108875 24817241 124086205 620431025 3102155125