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7999996 = 2217711657
BaseRepresentation
bin11110100001000111111100
3120001102221011
4132201013330
54021444441
6443245004
7124666414
oct36410774
916042834
107999996
114574574
122819764
131871434
1410c3644
15a80581
hex7a11fc

7999996 has 24 divisors (see below), whose sum is σ = 15041376. Its totient is φ = 3709440.

The previous prime is 7999993. The next prime is 8000009. The reversal of 7999996 is 6999997.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 7999996.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7999993) 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, 4000 + ... + 5656.

It is an arithmetic number, because the mean of its divisors is an integer number (626724).

Almost surely, 27999996 is an apocalyptic number.

It is an amenable number.

7999996 is a deficient number, since it is larger than the sum of its proper divisors (7041380).

7999996 is a wasteful number, since it uses less digits than its factorization.

7999996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1749 (or 1747 counting only the distinct ones).

The product of its digits is 2480058, while the sum is 58.

The square root of 7999996 is about 2828.4264176393. The cubic root of 7999996 is about 199.9999666667. Note that the first 4 decimals are identical.

Subtracting from 7999996 its reverse (6999997), we obtain a palindrome (999999).

The spelling of 7999996 in words is "seven million, nine hundred ninety-nine thousand, nine hundred ninety-six".

Divisors: 1 2 4 17 34 68 71 142 284 1207 1657 2414 3314 4828 6628 28169 56338 112676 117647 235294 470588 1999999 3999998 7999996