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120439008 = 2533139397
BaseRepresentation
bin1110010110111…
…00000011100000
322101121221021000
413023130003200
5221313022013
615541232000
72661500064
oct713340340
9271557230
10120439008
1161a91678
1234402600
131bc4b9b1
1411dd1aa4
15a890973
hex72dc0e0

120439008 has 48 divisors (see below), whose sum is σ = 351282960. Its totient is φ = 40146048.

The previous prime is 120438953. The next prime is 120439019. The reversal of 120439008 is 800934021.

It is a tau number, because it is divible by the number of its divisors (48).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68835 + ... + 70562.

It is an arithmetic number, because the mean of its divisors is an integer number (7318395).

Almost surely, 2120439008 is an apocalyptic number.

120439008 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

120439008 is an abundant number, since it is smaller than the sum of its proper divisors (230843952).

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

120439008 is a wasteful number, since it uses less digits than its factorization.

120439008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139416 (or 139402 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 120439008 is about 10974.4707389468. The cubic root of 120439008 is about 493.8431755365.

The spelling of 120439008 in words is "one hundred twenty million, four hundred thirty-nine thousand, eight".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 27 32 36 48 54 72 96 108 144 216 288 432 864 139397 278794 418191 557588 836382 1115176 1254573 1672764 2230352 2509146 3345528 3763719 4460704 5018292 6691056 7527438 10036584 13382112 15054876 20073168 30109752 40146336 60219504 120439008