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4155156 = 2232115421
BaseRepresentation
bin1111110110011100010100
321211002210200
433312130110
52030431111
6225020500
750214105
oct17663424
97732720
104155156
112388915
121484730
13b26395
147a23ac
15571256
hex3f6714

4155156 has 18 divisors (see below), whose sum is σ = 10503402. Its totient is φ = 1385040.

The previous prime is 4155121. The next prime is 4155161. The reversal of 4155156 is 6515514.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 3459600 + 695556 = 1860^2 + 834^2 .

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

It is a congruent number.

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, 57675 + ... + 57746.

Almost surely, 24155156 is an apocalyptic number.

It is an amenable number.

4155156 is an abundant number, since it is smaller than the sum of its proper divisors (6348246).

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

4155156 is a wasteful number, since it uses less digits than its factorization.

4155156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115431 (or 115426 counting only the distinct ones).

The product of its digits is 3000, while the sum is 27.

The square root of 4155156 is about 2038.4199763542. The cubic root of 4155156 is about 160.7665817536.

The spelling of 4155156 in words is "four million, one hundred fifty-five thousand, one hundred fifty-six".

Divisors: 1 2 3 4 6 9 12 18 36 115421 230842 346263 461684 692526 1038789 1385052 2077578 4155156