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13073172 = 22371031511
BaseRepresentation
bin110001110111…
…101100010100
3220121012000120
4301313230110
511321320142
61144111540
7216056130
oct61675424
926535016
1013073172
11741a082
1244655b0
132929608
141a443c0
1512337ec
hexc77b14

13073172 has 48 divisors (see below), whose sum is σ = 35223552. Its totient is φ = 3696480.

The previous prime is 13073167. The next prime is 13073183. The reversal of 13073172 is 27137031.

It is a super-2 number, since 2×130731722 = 341815652283168, which contains 22 as substring.

It is a hoax number, since the sum of its digits (24) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 7897 + ... + 9407.

It is an arithmetic number, because the mean of its divisors is an integer number (733824).

Almost surely, 213073172 is an apocalyptic number.

13073172 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13073172, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17611776).

13073172 is an abundant number, since it is smaller than the sum of its proper divisors (22150380).

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

13073172 is a wasteful number, since it uses less digits than its factorization.

13073172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1628 (or 1626 counting only the distinct ones).

The product of its (nonzero) digits is 882, while the sum is 24.

The square root of 13073172 is about 3615.6841676231. The cubic root of 13073172 is about 235.5738022665.

The spelling of 13073172 in words is "thirteen million, seventy-three thousand, one hundred seventy-two".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 84 103 206 309 412 618 721 1236 1442 1511 2163 2884 3022 4326 4533 6044 8652 9066 10577 18132 21154 31731 42308 63462 126924 155633 311266 466899 622532 933798 1089431 1867596 2178862 3268293 4357724 6536586 13073172