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13304478 = 2311474289
BaseRepresentation
bin110010110000…
…001010011110
3221000221022110
4302300022132
511401220403
61153054450
7221041365
oct62601236
927027273
1013304478
117567940
124557426
1329aa995
141aa47dc
15127c103
hexcb029e

13304478 has 32 divisors (see below), whose sum is σ = 29652480. Its totient is φ = 3944960.

The previous prime is 13304461. The next prime is 13304479. The reversal of 13304478 is 87440331.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13304479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 958 + ... + 5246.

It is an arithmetic number, because the mean of its divisors is an integer number (926640).

Almost surely, 213304478 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13304478, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14826240).

13304478 is an abundant number, since it is smaller than the sum of its proper divisors (16348002).

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

13304478 is a wasteful number, since it uses less digits than its factorization.

13304478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4352.

The product of its (nonzero) digits is 8064, while the sum is 30.

The square root of 13304478 is about 3647.5303974059. The cubic root of 13304478 is about 236.9550378485.

The spelling of 13304478 in words is "thirteen million, three hundred four thousand, four hundred seventy-eight".

Divisors: 1 2 3 6 11 22 33 47 66 94 141 282 517 1034 1551 3102 4289 8578 12867 25734 47179 94358 141537 201583 283074 403166 604749 1209498 2217413 4434826 6652239 13304478