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180164356 = 222910914249
BaseRepresentation
bin10101011110100…
…01011100000100
3110120000022000221
422233101130010
5332110224411
625513314124
74315241341
oct1257213404
9416008027
10180164356
1192775169
1250405944
132b430938
1419cdb7c8
1510c3c071
hexabd1704

180164356 has 24 divisors (see below), whose sum is σ = 329175000. Its totient is φ = 86171904.

The previous prime is 180164329. The next prime is 180164357. The reversal of 180164356 is 653461081.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 62094400 + 118069956 = 7880^2 + 10866^2 .

It is not an unprimeable number, because it can be changed into a prime (180164357) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5520 + ... + 19768.

It is an arithmetic number, because the mean of its divisors is an integer number (13715625).

Almost surely, 2180164356 is an apocalyptic number.

It is an amenable number.

180164356 is a deficient number, since it is larger than the sum of its proper divisors (149010644).

180164356 is a wasteful number, since it uses less digits than its factorization.

180164356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14391 (or 14389 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 180164356 is about 13422.5316539020. The cubic root of 180164356 is about 564.7934149588.

The spelling of 180164356 in words is "one hundred eighty million, one hundred sixty-four thousand, three hundred fifty-six".

Divisors: 1 2 4 29 58 109 116 218 436 3161 6322 12644 14249 28498 56996 413221 826442 1553141 1652884 3106282 6212564 45041089 90082178 180164356