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120144154 = 2134620929
BaseRepresentation
bin1110010100101…
…00000100011010
322101001221210111
413022110010122
5221224103104
615531034534
72656131334
oct712240432
9271057714
10120144154
1161900099
123429ba4a
131bb77720
1411d56454
15a833404
hex729411a

120144154 has 8 divisors (see below), whose sum is σ = 194079060. Its totient is φ = 55451136.

The previous prime is 120144139. The next prime is 120144179. The reversal of 120144154 is 451441021.

It can be written as a sum of positive squares in 2 ways, for example, as 98307225 + 21836929 = 9915^2 + 4673^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2310439 + ... + 2310490.

Almost surely, 2120144154 is an apocalyptic number.

120144154 is a deficient number, since it is larger than the sum of its proper divisors (73934906).

120144154 is a wasteful number, since it uses less digits than its factorization.

120144154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4620944.

The product of its (nonzero) digits is 640, while the sum is 22.

The square root of 120144154 is about 10961.0288750646. The cubic root of 120144154 is about 493.4398437952.

Adding to 120144154 its reverse (451441021), we get a palindrome (571585175).

The spelling of 120144154 in words is "one hundred twenty million, one hundred forty-four thousand, one hundred fifty-four".

Divisors: 1 2 13 26 4620929 9241858 60072077 120144154