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6990196 = 2217102797
BaseRepresentation
bin11010101010100101110100
3111011010202011
4122222211310
53242141241
6405454004
7113262403
oct32524564
914133664
106990196
113a44924
122411304
1315a9915
14cdd63a
15931281
hex6aa974

6990196 has 12 divisors (see below), whose sum is σ = 12952548. Its totient is φ = 3289472.

The previous prime is 6990187. The next prime is 6990199. The reversal of 6990196 is 6910996.

6990196 = T419 + T420 + ... + T486.

It can be written as a sum of positive squares in 2 ways, for example, as 3132900 + 3857296 = 1770^2 + 1964^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6990199) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51331 + ... + 51466.

It is an arithmetic number, because the mean of its divisors is an integer number (1079379).

Almost surely, 26990196 is an apocalyptic number.

It is an amenable number.

6990196 is a deficient number, since it is larger than the sum of its proper divisors (5962352).

6990196 is a wasteful number, since it uses less digits than its factorization.

6990196 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102818 (or 102816 counting only the distinct ones).

The product of its (nonzero) digits is 26244, while the sum is 40.

The square root of 6990196 is about 2643.8978800249. The cubic root of 6990196 is about 191.2037699927.

The spelling of 6990196 in words is "six million, nine hundred ninety thousand, one hundred ninety-six".

Divisors: 1 2 4 17 34 68 102797 205594 411188 1747549 3495098 6990196