Search a number
-
+
3102156 = 223286171
BaseRepresentation
bin1011110101010111001100
312211121100200
423311113030
51243232111
6150253500
735240121
oct13652714
95747320
103102156
111829772
121057290
13847cc5
145aa748
15414256
hex2f55cc

3102156 has 18 divisors (see below), whose sum is σ = 7841652. Its totient is φ = 1034040.

The previous prime is 3102131. The next prime is 3102173. The reversal of 3102156 is 6512013.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 43050 + ... + 43121.

Almost surely, 23102156 is an apocalyptic number.

3102156 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

3102156 is an abundant number, since it is smaller than the sum of its proper divisors (4739496).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3102156 is a wasteful number, since it uses less digits than its factorization.

3102156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86181 (or 86176 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 3102156 is about 1761.2938426055. The cubic root of 3102156 is about 145.8437685775.

Adding to 3102156 its reverse (6512013), we get a palindrome (9614169).

The spelling of 3102156 in words is "three million, one hundred two thousand, one hundred fifty-six".

Divisors: 1 2 3 4 6 9 12 18 36 86171 172342 258513 344684 517026 775539 1034052 1551078 3102156