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20123033044 = 2241122701421
BaseRepresentation
bin10010101111011011…
…010001110111010100
31220221102000222212011
4102233123101313110
5312202444024134
613124442234004
71311444646552
oct225733216724
956842028764
1020123033044
118596a22624
123a971b5904
131b8902425a
14d8c790bd2
157cb970264
hex4af6d1dd4

20123033044 has 12 divisors (see below), whose sum is σ = 36074218068. Its totient is φ = 9816113600.

The previous prime is 20123033011. The next prime is 20123033081. The reversal of 20123033044 is 44033032102.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 11889285444 + 8233747600 = 109038^2 + 90740^2 .

It is a congruent number.

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, 61350547 + ... + 61350874.

It is an arithmetic number, because the mean of its divisors is an integer number (3006184839).

Almost surely, 220123033044 is an apocalyptic number.

It is an amenable number.

20123033044 is a deficient number, since it is larger than the sum of its proper divisors (15951185024).

20123033044 is a wasteful number, since it uses less digits than its factorization.

20123033044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122701466 (or 122701464 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 22.

Adding to 20123033044 its reverse (44033032102), we get a palindrome (64156065146).

The spelling of 20123033044 in words is "twenty billion, one hundred twenty-three million, thirty-three thousand, forty-four".

Divisors: 1 2 4 41 82 164 122701421 245402842 490805684 5030758261 10061516522 20123033044