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2144408 = 237149257
BaseRepresentation
bin1000001011100010011000
311000221120112
420023202120
51022110113
6113543452
724140630
oct10134230
94027515
102144408
111235142
12874b88
135a10a6
143db6c0
152c55a8
hex20b898

2144408 has 32 divisors (see below), whose sum is σ = 4644000. Its totient is φ = 909312.

The previous prime is 2144407. The next prime is 2144419. The reversal of 2144408 is 8044412.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2144407) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8216 + ... + 8472.

It is an arithmetic number, because the mean of its divisors is an integer number (145125).

22144408 is an apocalyptic number.

2144408 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

2144408 is an abundant number, since it is smaller than the sum of its proper divisors (2499592).

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

2144408 is a wasteful number, since it uses less digits than its factorization.

2144408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 419 (or 415 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 23.

The square root of 2144408 is about 1464.3797321733. The cubic root of 2144408 is about 128.9542934443.

It can be divided in two parts, 2144 and 408, that added together give a palindrome (2552).

The spelling of 2144408 in words is "two million, one hundred forty-four thousand, four hundred eight".

Divisors: 1 2 4 7 8 14 28 56 149 257 298 514 596 1028 1043 1192 1799 2056 2086 3598 4172 7196 8344 14392 38293 76586 153172 268051 306344 536102 1072204 2144408