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120311242 = 2149403729
BaseRepresentation
bin1110010101111…
…00110111001010
322101101102222221
413022330313022
5221244424432
615534404254
72660425432
oct712746712
9271342887
10120311242
1161a04687
123436068a
131bc057ac
1411d9b2c2
15a867b97
hex72bcdca

120311242 has 8 divisors (see below), whose sum is σ = 181678500. Its totient is φ = 59751744.

The previous prime is 120311237. The next prime is 120311251. The reversal of 120311242 is 242113021.

It can be written as a sum of positive squares in 2 ways, for example, as 114254721 + 6056521 = 10689^2 + 2461^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 201567 + ... + 202162.

Almost surely, 2120311242 is an apocalyptic number.

120311242 is a deficient number, since it is larger than the sum of its proper divisors (61367258).

120311242 is a wasteful number, since it uses less digits than its factorization.

120311242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 403880.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 120311242 is about 10968.6481391282. The cubic root of 120311242 is about 493.6684849248.

Adding to 120311242 its reverse (242113021), we get a palindrome (362424263).

The spelling of 120311242 in words is "one hundred twenty million, three hundred eleven thousand, two hundred forty-two".

Divisors: 1 2 149 298 403729 807458 60155621 120311242