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994921343 = 13181547773
BaseRepresentation
bin111011010011010…
…100101101111111
32120100010020111122
4323103110231333
54014144440333
6242420341155
733440456213
oct7323245577
92510106448
10994921343
11470675149
122392447bb
1312b17c670
14961c8943
155c52b798
hex3b4d4b7f

994921343 has 16 divisors (see below), whose sum is σ = 1080739296. Its totient is φ = 910465920.

The previous prime is 994921331. The next prime is 994921349. The reversal of 994921343 is 343129499.

It is not a de Polignac number, because 994921343 - 28 = 994921087 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 994921294 and 994921303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (994921349) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1286705 + ... + 1287477.

It is an arithmetic number, because the mean of its divisors is an integer number (67546206).

Almost surely, 2994921343 is an apocalyptic number.

994921343 is a deficient number, since it is larger than the sum of its proper divisors (85817953).

994921343 is a wasteful number, since it uses less digits than its factorization.

994921343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1514.

The product of its digits is 209952, while the sum is 44.

The square root of 994921343 is about 31542.3737692647. The cubic root of 994921343 is about 998.3042403580.

The spelling of 994921343 in words is "nine hundred ninety-four million, nine hundred twenty-one thousand, three hundred forty-three".

Divisors: 1 13 181 547 773 2353 7111 10049 99007 139913 422831 1287091 1818869 5496803 76532411 994921343