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15255123030 = 2325753456877
BaseRepresentation
bin11100011010100011…
…01011010001010110
31110101011012112200200
432031101223101112
5222220302414110
611001430121330
71050015256230
oct161521532126
943334175620
1015255123030
1165191347a4
122b58ab0246
131591663524
14a4a075250
155e440b6c0
hex38d46b456

15255123030 has 96 divisors (see below), whose sum is σ = 46184883264. Its totient is φ = 3421087488.

The previous prime is 15255122989. The next prime is 15255123041. The reversal of 15255123030 is 3032155251.

It is a happy number.

15255123030 is a `hidden beast` number, since 1 + 52 + 551 + 2 + 30 + 30 = 666.

15255123030 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 15255122985 and 15255123003.

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 47 ways as a sum of consecutive naturals, for example, 195049 + ... + 261828.

It is an arithmetic number, because the mean of its divisors is an integer number (481092534).

Almost surely, 215255123030 is an apocalyptic number.

15255123030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

15255123030 is an abundant number, since it is smaller than the sum of its proper divisors (30929760234).

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

15255123030 is a wasteful number, since it uses less digits than its factorization.

15255123030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 456950 (or 456947 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 27.

Adding to 15255123030 its reverse (3032155251), we get a palindrome (18287278281).

The spelling of 15255123030 in words is "fifteen billion, two hundred fifty-five million, one hundred twenty-three thousand, thirty".

Divisors: 1 2 3 5 6 7 9 10 14 15 18 21 30 35 42 45 53 63 70 90 105 106 126 159 210 265 315 318 371 477 530 630 742 795 954 1113 1590 1855 2226 2385 3339 3710 4770 5565 6678 11130 16695 33390 456877 913754 1370631 2284385 2741262 3198139 4111893 4568770 6396278 6853155 8223786 9594417 13706310 15990695 19188834 20559465 24214481 28783251 31981390 41118930 47972085 48428962 57566502 72643443 95944170 121072405 143916255 145286886 169501367 217930329 242144810 287832510 339002734 363217215 435860658 508504101 726434430 847506835 1017008202 1089651645 1525512303 1695013670 2179303290 2542520505 3051024606 5085041010 7627561515 15255123030