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80166196 = 22111821959
BaseRepresentation
bin1001100011100…
…11110100110100
312120211212100101
410301303310310
5131010304241
611542123444
71662254455
oct461636464
9176755311
1080166196
1141285060
1222a20584
13137bac26
14a90b12c
157087e31
hex4c73d34

80166196 has 12 divisors (see below), whose sum is σ = 153044640. Its totient is φ = 36439160.

The previous prime is 80166143. The next prime is 80166199. The reversal of 80166196 is 69166108.

It is a super-2 number, since 2×801661962 = 12853237962220832, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80166199) 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, 910936 + ... + 911023.

It is an arithmetic number, because the mean of its divisors is an integer number (12753720).

Almost surely, 280166196 is an apocalyptic number.

It is an amenable number.

80166196 is a deficient number, since it is larger than the sum of its proper divisors (72878444).

80166196 is a wasteful number, since it uses less digits than its factorization.

80166196 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1821974 (or 1821972 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 37.

The square root of 80166196 is about 8953.5577286350. The cubic root of 80166196 is about 431.1851136431.

The spelling of 80166196 in words is "eighty million, one hundred sixty-six thousand, one hundred ninety-six".

Divisors: 1 2 4 11 22 44 1821959 3643918 7287836 20041549 40083098 80166196