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169428088 = 2321178511
BaseRepresentation
bin10100001100101…
…00010001111000
3102210210211122101
422012110101320
5321333144323
624451233144
74125054304
oct1206242170
9383724571
10169428088
1187701915
12488a87b4
1329141c0b
1418704d04
15ed1adad
hexa194478

169428088 has 8 divisors (see below), whose sum is σ = 317677680. Its totient is φ = 84714040.

The previous prime is 169428053. The next prime is 169428089. The reversal of 169428088 is 880824961.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (169428089) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10589248 + ... + 10589263.

It is an arithmetic number, because the mean of its divisors is an integer number (39709710).

Almost surely, 2169428088 is an apocalyptic number.

It is an amenable number.

169428088 is a deficient number, since it is larger than the sum of its proper divisors (148249592).

169428088 is a wasteful number, since it uses less digits than its factorization.

169428088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21178517 (or 21178513 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 46.

The square root of 169428088 is about 13016.4545095813. The cubic root of 169428088 is about 553.3439126378.

The spelling of 169428088 in words is "one hundred sixty-nine million, four hundred twenty-eight thousand, eighty-eight".

Divisors: 1 2 4 8 21178511 42357022 84714044 169428088