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55996724 = 22719671571
BaseRepresentation
bin1101010110011…
…1000100110100
310220100221001202
43111213010310
5103313343344
65320112032
71246651520
oct325470464
9126327052
1055996724
1129677193
1216905618
13b7a7a74
147618d80
154db194e
hex3567134

55996724 has 48 divisors (see below), whose sum is σ = 119723520. Its totient is φ = 22381920.

The previous prime is 55996711. The next prime is 55996729. The reversal of 55996724 is 42769955.

55996724 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55996729) by changing a digit.

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, 34859 + ... + 36429.

It is an arithmetic number, because the mean of its divisors is an integer number (2494240).

Almost surely, 255996724 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55996724, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59861760).

55996724 is an abundant number, since it is smaller than the sum of its proper divisors (63726796).

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

55996724 is a wasteful number, since it uses less digits than its factorization.

55996724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1668 (or 1666 counting only the distinct ones).

The product of its digits is 680400, while the sum is 47.

The square root of 55996724 is about 7483.0958833894. The cubic root of 55996724 is about 382.5787759774.

The spelling of 55996724 in words is "fifty-five million, nine hundred ninety-six thousand, seven hundred twenty-four".

Divisors: 1 2 4 7 14 19 28 38 67 76 133 134 266 268 469 532 938 1273 1571 1876 2546 3142 5092 6284 8911 10997 17822 21994 29849 35644 43988 59698 105257 119396 208943 210514 417886 421028 736799 835772 1473598 1999883 2947196 3999766 7999532 13999181 27998362 55996724