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55150650 = 23252122557
BaseRepresentation
bin1101001001100…
…0100000111010
310211202221110200
43102120200322
5103104310100
65250023030
71236526032
oct322304072
9124687420
1055150650
1129149555
1216577a76
13b56c929
1474788c2
154c95e00
hex349883a

55150650 has 36 divisors (see below), whose sum is σ = 148172622. Its totient is φ = 14706720.

The previous prime is 55150637. The next prime is 55150651. The reversal of 55150650 is 5605155.

55150650 is a `hidden beast` number, since 5 + 5 + 1 + 5 + 0 + 650 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 43678881 + 11471769 = 6609^2 + 3387^2 .

It is a super-3 number, since 3×551506503 (a number of 24 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (55150651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 60829 + ... + 61728.

Almost surely, 255150650 is an apocalyptic number.

55150650 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

55150650 is an abundant number, since it is smaller than the sum of its proper divisors (93021972).

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

55150650 is a wasteful number, since it uses less digits than its factorization.

55150650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122575 (or 122567 counting only the distinct ones).

The product of its (nonzero) digits is 3750, while the sum is 27.

The square root of 55150650 is about 7426.3483624188. The cubic root of 55150650 is about 380.6421506181.

The spelling of 55150650 in words is "fifty-five million, one hundred fifty thousand, six hundred fifty".

Divisors: 1 2 3 5 6 9 10 15 18 25 30 45 50 75 90 150 225 450 122557 245114 367671 612785 735342 1103013 1225570 1838355 2206026 3063925 3676710 5515065 6127850 9191775 11030130 18383550 27575325 55150650