Search a number
-
+
2156246444 = 2211110944189
BaseRepresentation
bin1000000010000101…
…1011010110101100
312120021100200001102
42000201123112230
513403444341234
6553543502232
7104301535532
oct20041332654
95507320042
102156246444
11a07165960
12502157978
13284952491
1416652c152
15c9477c7e
hex8085b5ac

2156246444 has 24 divisors (see below), whose sum is σ = 4120275600. Its totient is φ = 979206080.

The previous prime is 2156246423. The next prime is 2156246453. The reversal of 2156246444 is 4446426512.

It is a junction number, because it is equal to n+sod(n) for n = 2156246398 and 2156246407.

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 7 ways as a sum of consecutive naturals, for example, 26702 + ... + 70890.

It is an arithmetic number, because the mean of its divisors is an integer number (171678150).

Almost surely, 22156246444 is an apocalyptic number.

It is an amenable number.

2156246444 is a deficient number, since it is larger than the sum of its proper divisors (1964029156).

2156246444 is a wasteful number, since it uses less digits than its factorization.

2156246444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45313 (or 45311 counting only the distinct ones).

The product of its digits is 184320, while the sum is 38.

The square root of 2156246444 is about 46435.4007627801. The cubic root of 2156246444 is about 1291.9116029007.

The spelling of 2156246444 in words is "two billion, one hundred fifty-six million, two hundred forty-six thousand, four hundred forty-four".

Divisors: 1 2 4 11 22 44 1109 2218 4436 12199 24398 44189 48796 88378 176756 486079 972158 1944316 49005601 98011202 196022404 539061611 1078123222 2156246444