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1214242380 = 2233513172969
BaseRepresentation
bin100100001011111…
…1101111001001100
310010121210220102000
41020113331321030
54441321224010
6320253232300
742042614151
oct11027757114
93117726360
101214242380
115734542aa
1229a792690
13164740020
14b739a228
15719007c0
hex485fde4c

1214242380 has 96 divisors (see below), whose sum is σ = 4068254400. Its totient is φ = 298888704.

The previous prime is 1214242373. The next prime is 1214242417. The reversal of 1214242380 is 832424121.

1214242380 is a `hidden beast` number, since 1 + 2 + 1 + 424 + 238 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

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 31 ways as a sum of consecutive naturals, for example, 79465 + ... + 93504.

It is an arithmetic number, because the mean of its divisors is an integer number (42377650).

Almost surely, 21214242380 is an apocalyptic number.

1214242380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1214242380 is an abundant number, since it is smaller than the sum of its proper divisors (2854012020).

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

1214242380 is a wasteful number, since it uses less digits than its factorization.

1214242380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173000 (or 172992 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

The square root of 1214242380 is about 34845.9808299322. The cubic root of 1214242380 is about 1066.8461531731.

The spelling of 1214242380 in words is "one billion, two hundred fourteen million, two hundred forty-two thousand, three hundred eighty".

Divisors: 1 2 3 4 5 6 9 10 12 13 15 18 20 26 27 30 36 39 45 52 54 60 65 78 90 108 117 130 135 156 180 195 234 260 270 351 390 468 540 585 702 780 1170 1404 1755 2340 3510 7020 172969 345938 518907 691876 864845 1037814 1556721 1729690 2075628 2248597 2594535 3113442 3459380 4497194 4670163 5189070 6226884 6745791 7783605 8994388 9340326 10378140 11242985 13491582 15567210 18680652 20237373 22485970 23350815 26983164 31134420 33728955 40474746 44971940 46701630 60712119 67457910 80949492 93403260 101186865 121424238 134915820 202373730 242848476 303560595 404747460 607121190 1214242380