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44161420 = 2252208071
BaseRepresentation
bin1010100001110…
…1100110001100
310002002122002011
42220131212030
542301131140
64214311004
71044236332
oct250354614
9102078064
1044161420
1122a23146
1212958464
1391c2a24
145c17b52
153d24cea
hex2a1d98c

44161420 has 12 divisors (see below), whose sum is σ = 92739024. Its totient is φ = 17664560.

The previous prime is 44161409. The next prime is 44161421. The reversal of 44161420 is 2416144.

It is a junction number, because it is equal to n+sod(n) for n = 44161391 and 44161400.

It is not an unprimeable number, because it can be changed into a prime (44161421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1104016 + ... + 1104055.

It is an arithmetic number, because the mean of its divisors is an integer number (7728252).

Almost surely, 244161420 is an apocalyptic number.

It is an amenable number.

44161420 is an abundant number, since it is smaller than the sum of its proper divisors (48577604).

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

44161420 is a wasteful number, since it uses less digits than its factorization.

44161420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2208080 (or 2208078 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 44161420 is about 6645.4059319202. The cubic root of 44161420 is about 353.4660254755.

Adding to 44161420 its reverse (2416144), we get a palindrome (46577564).

The spelling of 44161420 in words is "forty-four million, one hundred sixty-one thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 2208071 4416142 8832284 11040355 22080710 44161420