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120030452 = 2241731893
BaseRepresentation
bin1110010011110…
…00010011110100
322100212011211022
413021320103310
5221211433302
615524400312
72655146003
oct711702364
9270764738
10120030452
1161832723
1234246098
131bb37a49
1411d26c3a
15a80e8a2
hex72784f4

120030452 has 12 divisors (see below), whose sum is σ = 215176836. Its totient is φ = 58551360.

The previous prime is 120030451. The next prime is 120030503. The reversal of 120030452 is 254030021.

It can be written as a sum of positive squares in 2 ways, for example, as 24068836 + 95961616 = 4906^2 + 9796^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 120030452.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120030451) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 365783 + ... + 366110.

It is an arithmetic number, because the mean of its divisors is an integer number (17931403).

Almost surely, 2120030452 is an apocalyptic number.

It is an amenable number.

120030452 is a deficient number, since it is larger than the sum of its proper divisors (95146384).

120030452 is a wasteful number, since it uses less digits than its factorization.

120030452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 731938 (or 731936 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 120030452 is about 10955.8409992113. The cubic root of 120030452 is about 493.2841341651.

Adding to 120030452 its reverse (254030021), we get a palindrome (374060473).

The spelling of 120030452 in words is "one hundred twenty million, thirty thousand, four hundred fifty-two".

Divisors: 1 2 4 41 82 164 731893 1463786 2927572 30007613 60015226 120030452