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7520042 = 231121291
BaseRepresentation
bin11100101011111100101010
3112011001120002
4130223330222
53411120132
6425103002
7120630215
oct34537452
915131502
107520042
114276a12
122627a62
131733b3a
14dda77c
159d8262
hex72bf2a

7520042 has 8 divisors (see below), whose sum is σ = 11644032. Its totient is φ = 3638700.

The previous prime is 7520027. The next prime is 7520063. The reversal of 7520042 is 2400257.

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

It is a junction number, because it is equal to n+sod(n) for n = 7519996 and 7520023.

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, 60584 + ... + 60707.

It is an arithmetic number, because the mean of its divisors is an integer number (1455504).

Almost surely, 27520042 is an apocalyptic number.

7520042 is a deficient number, since it is larger than the sum of its proper divisors (4123990).

7520042 is a wasteful number, since it uses less digits than its factorization.

7520042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121324.

The product of its (nonzero) digits is 560, while the sum is 20.

The square root of 7520042 is about 2742.2694980618. The cubic root of 7520042 is about 195.9175864819.

Adding to 7520042 its reverse (2400257), we get a palindrome (9920299).

The spelling of 7520042 in words is "seven million, five hundred twenty thousand, forty-two".

Divisors: 1 2 31 62 121291 242582 3760021 7520042