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121481976 = 23372119391
BaseRepresentation
bin1110011110110…
…10101011111000
322110120220221110
413033122223320
5222044410401
620015440320
73003402600
oct717325370
9273526843
10121481976
1162634230
12348260a0
131c225635
14121c3c00
15a9e99d6
hex73daaf8

121481976 has 96 divisors (see below), whose sum is σ = 385447680. Its totient is φ = 31550400.

The previous prime is 121481959. The next prime is 121482019. The reversal of 121481976 is 679184121.

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 23 ways as a sum of consecutive naturals, for example, 8241 + ... + 17631.

It is an arithmetic number, because the mean of its divisors is an integer number (4015080).

Almost surely, 2121481976 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 121481976, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (192723840).

121481976 is an abundant number, since it is smaller than the sum of its proper divisors (263965704).

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

121481976 is a wasteful number, since it uses less digits than its factorization.

121481976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9425 (or 9414 counting only the distinct ones).

The product of its digits is 24192, while the sum is 39.

The square root of 121481976 is about 11021.8862269577. The cubic root of 121481976 is about 495.2645947910.

The spelling of 121481976 in words is "one hundred twenty-one million, four hundred eighty-one thousand, nine hundred seventy-six".

Divisors: 1 2 3 4 6 7 8 11 12 14 21 22 24 28 33 42 44 49 56 66 77 84 88 98 132 147 154 168 196 231 264 294 308 392 462 539 588 616 924 1078 1176 1617 1848 2156 3234 4312 6468 9391 12936 18782 28173 37564 56346 65737 75128 103301 112692 131474 197211 206602 225384 262948 309903 394422 413204 460159 525896 619806 723107 788844 826408 920318 1239612 1380477 1446214 1577688 1840636 2169321 2479224 2760954 2892428 3681272 4338642 5061749 5521908 5784856 8677284 10123498 11043816 15185247 17354568 20246996 30370494 40493992 60740988 121481976