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121948848 = 243373823
BaseRepresentation
bin1110100010011…
…00101010110000
322111110122101000
413101030222300
5222204330343
620033442000
73010356000
oct721145260
9274418330
10121948848
1162922a7a
1234a10300
131c359ca8
14122a6000
15aa8ced3
hex744cab0

121948848 has 160 divisors (see below), whose sum is σ = 408704000. Its totient is φ = 34800192.

The previous prime is 121948847. The next prime is 121948867. The reversal of 121948848 is 848849121.

121948848 is a `hidden beast` number, since 121 + 9 + 488 + 48 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121948847) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 147765 + ... + 148587.

It is an arithmetic number, because the mean of its divisors is an integer number (2554400).

Almost surely, 2121948848 is an apocalyptic number.

121948848 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 121948848, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (204352000).

121948848 is an abundant number, since it is smaller than the sum of its proper divisors (286755152).

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

121948848 is an equidigital number, since it uses as much as digits as its factorization.

121948848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 861 (or 835 counting only the distinct ones).

The product of its digits is 147456, while the sum is 45.

The square root of 121948848 is about 11043.0452321812. The cubic root of 121948848 is about 495.8982404841.

The spelling of 121948848 in words is "one hundred twenty-one million, nine hundred forty-eight thousand, eight hundred forty-eight".

Divisors: 1 2 3 4 6 7 8 9 12 14 16 18 21 24 27 28 36 42 48 49 54 56 63 72 84 98 108 112 126 144 147 168 189 196 216 252 294 336 343 378 392 432 441 504 588 686 756 784 823 882 1008 1029 1176 1323 1372 1512 1646 1764 2058 2352 2469 2646 2744 3024 3087 3292 3528 4116 4938 5292 5488 5761 6174 6584 7056 7407 8232 9261 9876 10584 11522 12348 13168 14814 16464 17283 18522 19752 21168 22221 23044 24696 29628 34566 37044 39504 40327 44442 46088 49392 51849 59256 69132 74088 80654 88884 92176 103698 118512 120981 138264 148176 155547 161308 177768 207396 241962 276528 282289 311094 322616 355536 362943 414792 483924 564578 622188 645232 725886 829584 846867 967848 1088829 1129156 1244376 1451772 1693734 1935696 2177658 2258312 2488752 2540601 2903544 3387468 4355316 4516624 5081202 5807088 6774936 7621803 8710632 10162404 13549872 15243606 17421264 20324808 30487212 40649616 60974424 121948848