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13719552 = 211371129
BaseRepresentation
bin110100010101…
…100000000000
3221211000200120
4310111200000
512003011202
61210020240
7224420460
oct64254000
927730616
1013719552
117820780
124717680
132ac48a2
141b71ba0
1513100bc
hexd15800

13719552 has 192 divisors, whose sum is σ = 47174400. Its totient is φ = 3440640.

The previous prime is 13719529. The next prime is 13719593. The reversal of 13719552 is 25591731.

It is a tau number, because it is divible by the number of its divisors (192).

It is a super-2 number, since 2×137195522 = 376452214161408, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 473074 + ... + 473102.

It is an arithmetic number, because the mean of its divisors is an integer number (245700).

Almost surely, 213719552 is an apocalyptic number.

13719552 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 13719552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23587200).

13719552 is an abundant number, since it is smaller than the sum of its proper divisors (33454848).

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

13719552 is a wasteful number, since it uses less digits than its factorization.

13719552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72 (or 52 counting only the distinct ones).

The product of its digits is 9450, while the sum is 33.

The square root of 13719552 is about 3703.9913606811. The cubic root of 13719552 is about 239.3940268287.

The spelling of 13719552 in words is "thirteen million, seven hundred nineteen thousand, five hundred fifty-two".