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7490245 = 57214007
BaseRepresentation
bin11100100100101011000101
3112002112200111
4130210223011
53404141440
6424313021
7120444310
oct34445305
915075614
107490245
114256594
122612771
1317233c9
14dcd977
159ce4ea
hex724ac5

7490245 has 8 divisors (see below), whose sum is σ = 10272384. Its totient is φ = 5136144.

The previous prime is 7490239. The next prime is 7490257. The reversal of 7490245 is 5420947.

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

It is a cyclic number.

It is not a de Polignac number, because 7490245 - 29 = 7489733 is a prime.

It is a super-2 number, since 2×74902452 = 112207540320050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 106969 + ... + 107038.

It is an arithmetic number, because the mean of its divisors is an integer number (1284048).

Almost surely, 27490245 is an apocalyptic number.

It is an amenable number.

7490245 is a deficient number, since it is larger than the sum of its proper divisors (2782139).

7490245 is a wasteful number, since it uses less digits than its factorization.

7490245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214019.

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 7490245 is about 2736.8311968406. The cubic root of 7490245 is about 195.6584796071.

It can be divided in two parts, 74902 and 45, that added together give a palindrome (74947).

The spelling of 7490245 in words is "seven million, four hundred ninety thousand, two hundred forty-five".

Divisors: 1 5 7 35 214007 1070035 1498049 7490245