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120950830 = 257111343281
BaseRepresentation
bin1110011010110…
…01000000101110
322102120221100101
413031121000232
5221430411310
620000221314
72666031220
oct715310056
9272527311
10120950830
1162301170
123460a83a
131c09a950
14120c6410
15a94243a
hex735902e

120950830 has 128 divisors (see below), whose sum is σ = 300174336. Its totient is φ = 33868800.

The previous prime is 120950783. The next prime is 120950831. The reversal of 120950830 is 38059021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120950831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 430290 + ... + 430570.

It is an arithmetic number, because the mean of its divisors is an integer number (2345112).

Almost surely, 2120950830 is an apocalyptic number.

120950830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

120950830 is an abundant number, since it is smaller than the sum of its proper divisors (179223506).

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

120950830 is a wasteful number, since it uses less digits than its factorization.

120950830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 362.

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 120950830 is about 10997.7647728982. The cubic root of 120950830 is about 494.5417382451.

The spelling of 120950830 in words is "one hundred twenty million, nine hundred fifty thousand, eight hundred thirty".

Divisors: 1 2 5 7 10 11 13 14 22 26 35 43 55 65 70 77 86 91 110 130 143 154 182 215 281 286 301 385 430 455 473 559 562 602 715 770 910 946 1001 1118 1405 1430 1505 1967 2002 2365 2795 2810 3010 3091 3311 3653 3913 3934 4730 5005 5590 6149 6182 6622 7306 7826 9835 10010 12083 12298 15455 16555 18265 19565 19670 21637 24166 25571 30745 30910 33110 36530 39130 40183 43043 43274 51142 60415 61490 80366 84581 86086 108185 120830 127855 132913 157079 169162 200915 215215 216370 255710 265826 281281 314158 401830 422905 430430 562562 664565 785395 845810 930391 1099553 1329130 1406405 1570790 1727869 1860782 2199106 2812810 3455738 4651955 5497765 8639345 9303910 10995530 12095083 17278690 24190166 60475415 120950830