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13173056 = 261371223
BaseRepresentation
bin110010010000…
…000101000000
3220210021000222
4302100011000
511333014211
61150202212
7216653261
oct62200500
926707028
1013173056
117488126
1244b3368
132962c10
141a6c968
1512531db
hexc90140

13173056 has 56 divisors (see below), whose sum is σ = 28675584. Its totient is φ = 5967360.

The previous prime is 13173053. The next prime is 13173077. The reversal of 13173056 is 65037131.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13173053) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58961 + ... + 59183.

It is an arithmetic number, because the mean of its divisors is an integer number (512064).

Almost surely, 213173056 is an apocalyptic number.

13173056 is a gapful number since it is divisible by the number (16) 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 13173056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14337792).

13173056 is an abundant number, since it is smaller than the sum of its proper divisors (15502528).

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

13173056 is a wasteful number, since it uses less digits than its factorization.

13173056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 319 (or 309 counting only the distinct ones).

The product of its (nonzero) digits is 1890, while the sum is 26.

The square root of 13173056 is about 3629.4704847953. The cubic root of 13173056 is about 236.1722385287.

The spelling of 13173056 in words is "thirteen million, one hundred seventy-three thousand, fifty-six".

Divisors: 1 2 4 8 13 16 26 32 52 64 71 104 142 208 223 284 416 446 568 832 892 923 1136 1784 1846 2272 2899 3568 3692 4544 5798 7136 7384 11596 14272 14768 15833 23192 29536 31666 46384 59072 63332 92768 126664 185536 205829 253328 411658 506656 823316 1013312 1646632 3293264 6586528 13173056