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199033679 = 13142710729
BaseRepresentation
bin10111101110100…
…00001101001111
3111212111221212202
423313100031033
5401423034204
631425552115
74634521055
oct1367201517
9455457782
10199033679
11a2392a49
12567a563b
1332309510
141c6101d5
1512717e1e
hexbdd034f

199033679 has 8 divisors (see below), whose sum is σ = 214514160. Its totient is φ = 183577536.

The previous prime is 199033663. The next prime is 199033691. The reversal of 199033679 is 976330991.

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 199033679 - 24 = 199033663 is a prime.

It is a super-2 number, since 2×1990336792 = 79228810752550082, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (199033649) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13187 + ... + 23915.

It is an arithmetic number, because the mean of its divisors is an integer number (26814270).

Almost surely, 2199033679 is an apocalyptic number.

199033679 is a deficient number, since it is larger than the sum of its proper divisors (15480481).

199033679 is a wasteful number, since it uses less digits than its factorization.

199033679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12169.

The product of its (nonzero) digits is 275562, while the sum is 47.

The square root of 199033679 is about 14107.9296496687. The cubic root of 199033679 is about 583.8601800993.

The spelling of 199033679 in words is "one hundred ninety-nine million, thirty-three thousand, six hundred seventy-nine".

Divisors: 1 13 1427 10729 18551 139477 15310283 199033679