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55944828 = 223229411307
BaseRepresentation
bin1101010101101…
…0011001111100
310220021021212200
43111122121330
5103310213303
65315031500
71246344312
oct325323174
9126237780
1055944828
11296411a5
121689b590
13b78a264
1476040b2
154da13a3
hex355a67c

55944828 has 72 divisors (see below), whose sum is σ = 149975280. Its totient is φ = 17552640.

The previous prime is 55944821. The next prime is 55944853. The reversal of 55944828 is 82844955.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55944821) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 42151 + ... + 43457.

It is an arithmetic number, because the mean of its divisors is an integer number (2082990).

Almost surely, 255944828 is an apocalyptic number.

55944828 is a gapful number since it is divisible by the number (58) 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 55944828, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74987640).

55944828 is an abundant number, since it is smaller than the sum of its proper divisors (94030452).

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

55944828 is a wasteful number, since it uses less digits than its factorization.

55944828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1387 (or 1382 counting only the distinct ones).

The product of its digits is 460800, while the sum is 45.

The square root of 55944828 is about 7479.6275308333. The cubic root of 55944828 is about 382.4605521281.

The spelling of 55944828 in words is "fifty-five million, nine hundred forty-four thousand, eight hundred twenty-eight".

Divisors: 1 2 3 4 6 9 12 18 29 36 41 58 82 87 116 123 164 174 246 261 348 369 492 522 738 1044 1189 1307 1476 2378 2614 3567 3921 4756 5228 7134 7842 10701 11763 14268 15684 21402 23526 37903 42804 47052 53587 75806 107174 113709 151612 160761 214348 227418 321522 341127 454836 482283 643044 682254 964566 1364508 1554023 1929132 3108046 4662069 6216092 9324138 13986207 18648276 27972414 55944828