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120117542 = 2149403079
BaseRepresentation
bin1110010100011…
…01100100100110
322101000121021212
413022031210212
5221222230132
615530311422
72655660626
oct712154446
9271017255
10120117542
11618920a6
1234288572
131bb6858c
1411d4a886
15a82a5b2
hex728d926

120117542 has 8 divisors (see below), whose sum is σ = 181386000. Its totient is φ = 59655544.

The previous prime is 120117539. The next prime is 120117559. The reversal of 120117542 is 245711021.

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

It is a super-2 number, since 2×1201175422 = 28856447792243528, which contains 22 as substring.

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 3 ways as a sum of consecutive naturals, for example, 201242 + ... + 201837.

It is an arithmetic number, because the mean of its divisors is an integer number (22673250).

Almost surely, 2120117542 is an apocalyptic number.

120117542 is a deficient number, since it is larger than the sum of its proper divisors (61268458).

120117542 is a wasteful number, since it uses less digits than its factorization.

120117542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 403230.

The product of its (nonzero) digits is 560, while the sum is 23.

The square root of 120117542 is about 10959.8148706992. The cubic root of 120117542 is about 493.4034087008.

Adding to 120117542 its reverse (245711021), we get a palindrome (365828563).

The spelling of 120117542 in words is "one hundred twenty million, one hundred seventeen thousand, five hundred forty-two".

Divisors: 1 2 149 298 403079 806158 60058771 120117542