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121362288 = 24371149239
BaseRepresentation
bin1110011101111…
…01011101110000
322110100211202120
413032331131300
5222032043123
620013114240
73002363625
oct716753560
9273324676
10121362288
1162562313
1234788980
131c1b3008
141219234c
15a9c42e3
hex73bd770

121362288 has 80 divisors (see below), whose sum is σ = 321408000. Its totient is φ = 39450880.

The previous prime is 121362239. The next prime is 121362299. The reversal of 121362288 is 882263121.

It is a nude number because it is divisible by every one of its digits.

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, 507673 + ... + 507911.

It is an arithmetic number, because the mean of its divisors is an integer number (4017600).

Almost surely, 2121362288 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 121362288, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (160704000).

121362288 is an abundant number, since it is smaller than the sum of its proper divisors (200045712).

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

121362288 is a wasteful number, since it uses less digits than its factorization.

121362288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 470 (or 464 counting only the distinct ones).

The product of its digits is 9216, while the sum is 33.

The square root of 121362288 is about 11016.4553282805. The cubic root of 121362288 is about 495.1018910750.

The spelling of 121362288 in words is "one hundred twenty-one million, three hundred sixty-two thousand, two hundred eighty-eight".

Divisors: 1 2 3 4 6 8 12 16 24 48 71 142 149 213 239 284 298 426 447 478 568 596 717 852 894 956 1136 1192 1434 1704 1788 1912 2384 2868 3408 3576 3824 5736 7152 10579 11472 16969 21158 31737 33938 35611 42316 50907 63474 67876 71222 84632 101814 106833 126948 135752 142444 169264 203628 213666 253896 271504 284888 407256 427332 507792 569776 814512 854664 1709328 2528381 5056762 7585143 10113524 15170286 20227048 30340572 40454096 60681144 121362288