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180163072 = 293111351
BaseRepresentation
bin10101011110100…
…01001000000000
3110120000020021101
422233101020000
5332110204242
625513304144
74315234525
oct1257211000
9416006241
10180163072
1192774201
1250405054
132b43018b
1419cdb14c
1510c3b9b7
hexabd1200

180163072 has 40 divisors (see below), whose sum is σ = 371619072. Its totient is φ = 87168000.

The previous prime is 180163007. The next prime is 180163099. The reversal of 180163072 is 270361081.

It is a self number, because there is not a number n which added to its sum of digits gives 180163072.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10197 + ... + 21547.

Almost surely, 2180163072 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 180163072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (185809536).

180163072 is an abundant number, since it is smaller than the sum of its proper divisors (191456000).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

180163072 is an equidigital number, since it uses as much as digits as its factorization.

180163072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11400 (or 11384 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 180163072 is about 13422.4838237936. The cubic root of 180163072 is about 564.7920732275.

The spelling of 180163072 in words is "one hundred eighty million, one hundred sixty-three thousand, seventy-two".

Divisors: 1 2 4 8 16 31 32 62 64 124 128 248 256 496 512 992 1984 3968 7936 11351 15872 22702 45404 90808 181616 351881 363232 703762 726464 1407524 1452928 2815048 2905856 5630096 5811712 11260192 22520384 45040768 90081536 180163072