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23506505044 = 22111943653903
BaseRepresentation
bin10101111001000110…
…001100110101010100
32020200012122011212221
4111321012030311110
5341120131130134
614444305552124
71461340665451
oct257106146524
966605564787
1023506505044
119a7289a180
124680345644
1322a7cb10a9
1411cdc98828
15928a105b4
hex57918cd54

23506505044 has 48 divisors (see below), whose sum is σ = 48336583680. Its totient is φ = 9886998240.

The previous prime is 23506504951. The next prime is 23506505093. The reversal of 23506505044 is 44050560532.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 291004 + ... + 362899.

It is an arithmetic number, because the mean of its divisors is an integer number (1007012160).

Almost surely, 223506505044 is an apocalyptic number.

It is an amenable number.

23506505044 is an abundant number, since it is smaller than the sum of its proper divisors (24830078636).

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

23506505044 is a wasteful number, since it uses less digits than its factorization.

23506505044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 653980 (or 653978 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 34.

The spelling of 23506505044 in words is "twenty-three billion, five hundred six million, five hundred five thousand, forty-four".

Divisors: 1 2 4 11 19 22 38 43 44 76 86 172 209 418 473 817 836 946 1634 1892 3268 8987 17974 35948 653903 1307806 2615612 7192933 12424157 14385866 24848314 28117829 28771732 49696628 56235658 112471316 136665727 273331454 309296119 534238751 546662908 618592238 1068477502 1237184476 2136955004 5876626261 11753252522 23506505044