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164493152 = 255140411
BaseRepresentation
bin10011100110111…
…11011101100000
3102110112010011222
421303133131200
5314102240102
624153354212
74035111605
oct1163373540
9373463158
10164493152
118494115a
1247108968
1328104935
1417bbc6ac
15e693aa2
hex9cdf760

164493152 has 12 divisors (see below), whose sum is σ = 323845956. Its totient is φ = 82246560.

The previous prime is 164493151. The next prime is 164493179. The reversal of 164493152 is 251394461.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164493151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2570174 + ... + 2570237.

It is an arithmetic number, because the mean of its divisors is an integer number (26987163).

Almost surely, 2164493152 is an apocalyptic number.

It is an amenable number.

164493152 is a deficient number, since it is larger than the sum of its proper divisors (159352804).

164493152 is an equidigital number, since it uses as much as digits as its factorization.

164493152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5140421 (or 5140413 counting only the distinct ones).

The product of its digits is 25920, while the sum is 35.

The square root of 164493152 is about 12825.4883727677. The cubic root of 164493152 is about 547.9184704752.

The spelling of 164493152 in words is "one hundred sixty-four million, four hundred ninety-three thousand, one hundred fifty-two".

Divisors: 1 2 4 8 16 32 5140411 10280822 20561644 41123288 82246576 164493152