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120042230 = 257113147107
BaseRepresentation
bin1110010011110…
…11001011110110
322100212202222112
413021323023312
5221212322410
615524531022
72655225230
oct711731366
9270782875
10120042230
1161840560
1234250a72
131bb40209
1411d2b250
15a813105
hex727b2f6

120042230 has 128 divisors (see below), whose sum is σ = 286654464. Its totient is φ = 35107200.

The previous prime is 120042211. The next prime is 120042257. The reversal of 120042230 is 32240021.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a Curzon number.

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 63 ways as a sum of consecutive naturals, for example, 1121837 + ... + 1121943.

It is an arithmetic number, because the mean of its divisors is an integer number (2239488).

Almost surely, 2120042230 is an apocalyptic number.

120042230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

120042230 is an abundant number, since it is smaller than the sum of its proper divisors (166612234).

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

120042230 is a wasteful number, since it uses less digits than its factorization.

120042230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210.

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 120042230 is about 10956.3785075179. The cubic root of 120042230 is about 493.3002681556.

Adding to 120042230 its reverse (32240021), we get a palindrome (152282251).

The spelling of 120042230 in words is "one hundred twenty million, forty-two thousand, two hundred thirty".

Divisors: 1 2 5 7 10 11 14 22 31 35 47 55 62 70 77 94 107 110 154 155 214 217 235 310 329 341 385 434 470 517 535 658 682 749 770 1034 1070 1085 1177 1457 1498 1645 1705 2170 2354 2387 2585 2914 3290 3317 3410 3619 3745 4774 5029 5170 5885 6634 7238 7285 7490 8239 10058 10199 11770 11935 14570 16027 16478 16585 18095 20398 23219 23870 25145 32054 33170 35203 36190 36487 41195 46438 50290 50995 55319 70406 72974 80135 82390 101990 110638 112189 116095 155899 160270 176015 182435 224378 232190 255409 276595 311798 352030 364870 387233 510818 553190 560945 774466 779495 1091293 1121890 1277045 1558990 1714889 1936165 2182586 2554090 3429778 3872330 5456465 8574445 10912930 12004223 17148890 24008446 60021115 120042230