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7994402 = 2131916183
BaseRepresentation
bin11110011111110000100010
3120001011020222
4132133300202
54021310102
6443203042
7124644203
oct36376042
916034228
107994402
114570349
122816482
13186ba20
1410c15aa
15a7daa2
hex79fc22

7994402 has 16 divisors (see below), whose sum is σ = 13594560. Its totient is φ = 3495312.

The previous prime is 7994377. The next prime is 7994407. The reversal of 7994402 is 2044997.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (7994407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7598 + ... + 8585.

It is an arithmetic number, because the mean of its divisors is an integer number (849660).

Almost surely, 27994402 is an apocalyptic number.

7994402 is a deficient number, since it is larger than the sum of its proper divisors (5600158).

7994402 is a wasteful number, since it uses less digits than its factorization.

7994402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16217.

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 7994402 is about 2827.4373556279. The cubic root of 7994402 is about 199.9533391147.

The spelling of 7994402 in words is "seven million, nine hundred ninety-four thousand, four hundred two".

Divisors: 1 2 13 19 26 38 247 494 16183 32366 210379 307477 420758 614954 3997201 7994402