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44102140 = 2252205107
BaseRepresentation
bin1010100000111…
…1000111111100
310001222121202121
42220033013330
542242232030
64213132324
71043601445
oct250170774
9101877677
1044102140
1122992655
121292a0a4
1391a1a54
145c002cc
153d1247a
hex2a0f1fc

44102140 has 12 divisors (see below), whose sum is σ = 92614536. Its totient is φ = 17640848.

The previous prime is 44102137. The next prime is 44102141. The reversal of 44102140 is 4120144.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44102141) 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, 1102534 + ... + 1102573.

It is an arithmetic number, because the mean of its divisors is an integer number (7717878).

Almost surely, 244102140 is an apocalyptic number.

It is an amenable number.

44102140 is an abundant number, since it is smaller than the sum of its proper divisors (48512396).

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

44102140 is a wasteful number, since it uses less digits than its factorization.

44102140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2205116 (or 2205114 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 44102140 is about 6640.9442099750. The cubic root of 44102140 is about 353.3077965010.

Adding to 44102140 its reverse (4120144), we get a palindrome (48222284).

The spelling of 44102140 in words is "forty-four million, one hundred two thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 2205107 4410214 8820428 11025535 22051070 44102140