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120042318 = 23114094447
BaseRepresentation
bin1110010011110…
…11001101001110
322100212210002210
413021323031032
5221212323233
615524531250
72655225414
oct711731516
9270783083
10120042318
1161840630
1234250b26
131bb40276
1411d2b2b4
15a813163
hex727b34e

120042318 has 32 divisors (see below), whose sum is σ = 262609920. Its totient is φ = 36279360.

The previous prime is 120042311. The next prime is 120042347. The reversal of 120042318 is 813240021.

It is a super-2 number, since 2×1200423182 = 28820316221626248, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 120042294 and 120042303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120042311) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24771 + ... + 29217.

It is an arithmetic number, because the mean of its divisors is an integer number (8206560).

Almost surely, 2120042318 is an apocalyptic number.

120042318 is an abundant number, since it is smaller than the sum of its proper divisors (142567602).

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

120042318 is a wasteful number, since it uses less digits than its factorization.

120042318 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4872.

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 120042318 is about 10956.3825234427. The cubic root of 120042318 is about 493.3003886977.

Adding to 120042318 its reverse (813240021), we get a palindrome (933282339).

The spelling of 120042318 in words is "one hundred twenty million, forty-two thousand, three hundred eighteen".

Divisors: 1 2 3 6 11 22 33 66 409 818 1227 2454 4447 4499 8894 8998 13341 13497 26682 26994 48917 97834 146751 293502 1818823 3637646 5456469 10912938 20007053 40014106 60021159 120042318