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442013123013 = 371116317096869
BaseRepresentation
bin1100110111010100000…
…10010000000111000101
31120020220122200011002220
412123222002100013011
524220220324414023
6535020311122553
743635332361060
oct6335202200705
91506818604086
10442013123013
11160502980570
12717b9373459
13328b27b1147
1417571c838d7
15b76eed63e3
hex66ea0901c5

442013123013 has 64 divisors (see below), whose sum is σ = 739823155200. Its totient is φ = 228041775360.

The previous prime is 442013122981. The next prime is 442013123021. The reversal of 442013123013 is 310321310244.

It is a happy number.

It is not a de Polignac number, because 442013123013 - 25 = 442013122981 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442013123063) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 64345543 + ... + 64352411.

It is an arithmetic number, because the mean of its divisors is an integer number (11559736800).

Almost surely, 2442013123013 is an apocalyptic number.

It is an amenable number.

442013123013 is a deficient number, since it is larger than the sum of its proper divisors (297810032187).

442013123013 is a wasteful number, since it uses less digits than its factorization.

442013123013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8762.

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 442013123013 its reverse (310321310244), we get a palindrome (752334433257).

The spelling of 442013123013 in words is "four hundred forty-two billion, thirteen million, one hundred twenty-three thousand, thirteen".

Divisors: 1 3 7 11 21 33 77 163 231 489 1141 1709 1793 3423 5127 5379 6869 11963 12551 18799 20607 35889 37653 48083 56397 75559 131593 144249 226677 278567 394779 528913 835701 1119647 1586739 1949969 3064237 3358941 5849907 7837529 9192711 11739121 12316117 21449659 23512587 35217363 36948351 64348977 82173847 86212819 129130331 246521541 258638457 387390993 903912317 1913476723 2711736951 5740430169 13394337061 21048243953 40183011183 63144731859 147337707671 442013123013