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55063470 = 2357113197
BaseRepresentation
bin1101001000001…
…1001110101110
310211121111212210
43102003032232
5103044012340
65244111250
71236013620
oct322031656
9124544783
1055063470
112909a000
1216535526
13b53c047
147454c10
154c7a180
hex34833ae

55063470 has 128 divisors (see below), whose sum is σ = 166966272. Its totient is φ = 11383680.

The previous prime is 55063469. The next prime is 55063487. The reversal of 55063470 is 7436055.

55063470 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30).

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 63 ways as a sum of consecutive naturals, for example, 279412 + ... + 279608.

It is an arithmetic number, because the mean of its divisors is an integer number (1304424).

Almost surely, 255063470 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55063470, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (83483136).

55063470 is an abundant number, since it is smaller than the sum of its proper divisors (111902802).

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

55063470 is a wasteful number, since it uses less digits than its factorization.

55063470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247 (or 225 counting only the distinct ones).

The product of its (nonzero) digits is 12600, while the sum is 30.

The square root of 55063470 is about 7420.4763998008. The cubic root of 55063470 is about 380.4414767451.

The spelling of 55063470 in words is "fifty-five million, sixty-three thousand, four hundred seventy".

Divisors: 1 2 3 5 6 7 10 11 14 15 21 22 30 33 35 42 55 66 70 77 105 110 121 154 165 197 210 231 242 330 363 385 394 462 591 605 726 770 847 985 1155 1182 1210 1331 1379 1694 1815 1970 2167 2310 2541 2662 2758 2955 3630 3993 4137 4235 4334 5082 5910 6501 6655 6895 7986 8274 8470 9317 10835 12705 13002 13310 13790 15169 18634 19965 20685 21670 23837 25410 27951 30338 32505 39930 41370 45507 46585 47674 55902 65010 71511 75845 91014 93170 119185 139755 143022 151690 166859 227535 238370 262207 279510 333718 357555 455070 500577 524414 715110 786621 834295 1001154 1311035 1573242 1668590 1835449 2502885 2622070 3670898 3933105 5005770 5506347 7866210 9177245 11012694 18354490 27531735 55063470