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120984980 = 2258117459
BaseRepresentation
bin1110011011000…
…01010110010100
322102122200012012
413031201112110
5221433004410
620001043352
72666232614
oct715412624
9272580165
10120984980
1162324896
1234626558
131c0b035c
14120d4a44
15a94c605
hex7361594

120984980 has 24 divisors (see below), whose sum is σ = 254415840. Its totient is φ = 48327840.

The previous prime is 120984979. The next prime is 120985001. The reversal of 120984980 is 89489021.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 12491 + ... + 19949.

It is an arithmetic number, because the mean of its divisors is an integer number (10600660).

Almost surely, 2120984980 is an apocalyptic number.

120984980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120984980 is an abundant number, since it is smaller than the sum of its proper divisors (133430860).

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

120984980 is a wasteful number, since it uses less digits than its factorization.

120984980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8279 (or 8277 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 41.

The square root of 120984980 is about 10999.3172515388. The cubic root of 120984980 is about 494.5882778490.

The spelling of 120984980 in words is "one hundred twenty million, nine hundred eighty-four thousand, nine hundred eighty".

Divisors: 1 2 4 5 10 20 811 1622 3244 4055 7459 8110 14918 16220 29836 37295 74590 149180 6049249 12098498 24196996 30246245 60492490 120984980