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15120221233230 = 2325246236822989
BaseRepresentation
bin1101110000000111001101…
…1010100110000001001110
31222112110221012210210200100
43130001303122212001032
53440212203113430410
652054044515511530
73120254114622621
oct334016332460116
958473835723610
1015120221233230
1148aa4a4780483
1218424975b85a6
13858aa51b6989
143a3b73369db8
151b34a1c6a8c0
hexdc0736a604e

15120221233230 has 48 divisors (see below), whose sum is σ = 39314177547840. Its totient is φ = 4031894652864.

The previous prime is 15120221233219. The next prime is 15120221233267. The reversal of 15120221233230 is 3233212202151.

15120221233230 is a `hidden beast` number, since 1 + 5 + 120 + 2 + 212 + 3 + 323 + 0 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 15120221233194 and 15120221233203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1195425 + ... + 5627564.

It is an arithmetic number, because the mean of its divisors is an integer number (819045365580).

Almost surely, 215120221233230 is an apocalyptic number.

15120221233230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

15120221233230 is an abundant number, since it is smaller than the sum of its proper divisors (24193956314610).

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

15120221233230 is a wasteful number, since it uses less digits than its factorization.

15120221233230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6847625 (or 6847622 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

Adding to 15120221233230 its reverse (3233212202151), we get a palindrome (18353433435381).

The spelling of 15120221233230 in words is "fifteen trillion, one hundred twenty billion, two hundred twenty-one million, two hundred thirty-three thousand, two hundred thirty".

Divisors: 1 2 3 5 6 9 10 15 18 30 45 90 24623 49246 73869 123115 147738 221607 246230 369345 443214 738690 1108035 2216070 6822989 13645978 20468967 34114945 40937934 61406901 68229890 102344835 122813802 204689670 307034505 614069010 168002458147 336004916294 504007374441 840012290735 1008014748882 1512022123323 1680024581470 2520036872205 3024044246646 5040073744410 7560110616615 15120221233230