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13671172 = 224772719
BaseRepresentation
bin110100001001…
…101100000100
3221201120022201
4310021230010
511444434142
61205004244
7224126434
oct64115404
927646281
1013671172
117798399
1246b3684
132aa8868
141b5c2c4
151300ab7
hexd09b04

13671172 has 12 divisors (see below), whose sum is σ = 24433920. Its totient is φ = 6690056.

The previous prime is 13671143. The next prime is 13671173. The reversal of 13671172 is 27117631.

It is a self number, because there is not a number n which added to its sum of digits gives 13671172.

It is not an unprimeable number, because it can be changed into a prime (13671173) 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, 36172 + ... + 36547.

It is an arithmetic number, because the mean of its divisors is an integer number (2036160).

Almost surely, 213671172 is an apocalyptic number.

It is an amenable number.

13671172 is a deficient number, since it is larger than the sum of its proper divisors (10762748).

13671172 is a wasteful number, since it uses less digits than its factorization.

13671172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72770 (or 72768 counting only the distinct ones).

The product of its digits is 1764, while the sum is 28.

The square root of 13671172 is about 3697.4548002646. The cubic root of 13671172 is about 239.1122993668.

The spelling of 13671172 in words is "thirteen million, six hundred seventy-one thousand, one hundred seventy-two".

Divisors: 1 2 4 47 94 188 72719 145438 290876 3417793 6835586 13671172