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13421044 = 2271336871
BaseRepresentation
bin110011001100…
…100111110100
3221020212012201
4303030213310
511413433134
61155354244
7222035260
oct63144764
927225181
1013421044
11763747a
1245b2984
132a1ba60
141ad50a0
1512a1914
hexccc9f4

13421044 has 24 divisors (see below), whose sum is σ = 28907648. Its totient is φ = 5309280.

The previous prime is 13421039. The next prime is 13421071. The reversal of 13421044 is 44012431.

Adding to 13421044 its reverse (44012431), we get a palindrome (57433475).

13421044 = T167 + T168 + ... + T439.

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 7 ways as a sum of consecutive naturals, for example, 18072 + ... + 18799.

Almost surely, 213421044 is an apocalyptic number.

13421044 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

13421044 is an abundant number, since it is smaller than the sum of its proper divisors (15486604).

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

13421044 is a wasteful number, since it uses less digits than its factorization.

13421044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36895 (or 36893 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 13421044 is about 3663.4743072663. The cubic root of 13421044 is about 237.6450467633.

The spelling of 13421044 in words is "thirteen million, four hundred twenty-one thousand, forty-four".

Divisors: 1 2 4 7 13 14 26 28 52 91 182 364 36871 73742 147484 258097 479323 516194 958646 1032388 1917292 3355261 6710522 13421044