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120142472 = 23191674733
BaseRepresentation
bin1110010100100…
…11101010001000
322101001212111012
413022103222020
5221224024342
615531023052
72656123412
oct712235210
9271055435
10120142472
11618a98aa
123429aa88
131bb76a28
1411d559b2
15a832b82
hex7293a88

120142472 has 32 divisors (see below), whose sum is σ = 238593600. Its totient is φ = 56556864.

The previous prime is 120142427. The next prime is 120142493. The reversal of 120142472 is 274241021.

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, 23018 + ... + 27750.

It is an arithmetic number, because the mean of its divisors is an integer number (7456050).

Almost surely, 2120142472 is an apocalyptic number.

It is an amenable number.

120142472 is a deficient number, since it is larger than the sum of its proper divisors (118451128).

120142472 is a wasteful number, since it uses less digits than its factorization.

120142472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4925 (or 4921 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 23.

The square root of 120142472 is about 10960.9521484221. The cubic root of 120142472 is about 493.4375410901.

Adding to 120142472 its reverse (274241021), we get a palindrome (394383493).

The spelling of 120142472 in words is "one hundred twenty million, one hundred forty-two thousand, four hundred seventy-two".

Divisors: 1 2 4 8 19 38 76 152 167 334 668 1336 3173 4733 6346 9466 12692 18932 25384 37864 89927 179854 359708 719416 790411 1580822 3161644 6323288 15017809 30035618 60071236 120142472