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2144356 = 222292341
BaseRepresentation
bin1000001011100001100100
311000221111121
420023201210
51022104411
6113543324
724140524
oct10134144
94027447
102144356
1112350a5
12874b44
135a1066
143db684
152c5571
hex20b864

2144356 has 12 divisors (see below), whose sum is σ = 3770620. Its totient is φ = 1067040.

The previous prime is 2144323. The next prime is 2144369. The reversal of 2144356 is 6534412.

It can be written as a sum of positive squares in 2 ways, for example, as 1742400 + 401956 = 1320^2 + 634^2 .

It is a hoax number, since the sum of its digits (25) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 2144356.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 255 + ... + 2086.

22144356 is an apocalyptic number.

It is an amenable number.

2144356 is a deficient number, since it is larger than the sum of its proper divisors (1626264).

2144356 is a wasteful number, since it uses less digits than its factorization.

2144356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2574 (or 2572 counting only the distinct ones).

The product of its digits is 2880, while the sum is 25.

The square root of 2144356 is about 1464.3619771081. The cubic root of 2144356 is about 128.9532510933.

Adding to 2144356 its reverse (6534412), we get a palindrome (8678768).

It can be divided in two parts, 2144 and 356, that added together give a square (2500 = 502).

The spelling of 2144356 in words is "two million, one hundred forty-four thousand, three hundred fifty-six".

Divisors: 1 2 4 229 458 916 2341 4682 9364 536089 1072178 2144356