Search a number
-
+
1227230550 = 23252713231303
BaseRepresentation
bin100100100100110…
…0000110101010110
310011112020202211100
41021021200311112
510003132334200
6321435450530
742261200430
oct11111406526
93145222740
101227230550
1157a815527
122a2bb6a46
13167339a30
14b8dbb650
1572b18d00
hex49260d56

1227230550 has 288 divisors, whose sum is σ = 4237728768. Its totient is φ = 247484160.

The previous prime is 1227230549. The next prime is 1227230551. The reversal of 1227230550 is 550327221.

1227230550 is a `hidden beast` number, since 12 + 2 + 72 + 30 + 550 = 666.

It is an interprime number because it is at equal distance from previous prime (1227230549) and next prime (1227230551).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1227230551) 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 143 ways as a sum of consecutive naturals, for example, 941199 + ... + 942501.

It is an arithmetic number, because the mean of its divisors is an integer number (14714336).

Almost surely, 21227230550 is an apocalyptic number.

1227230550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1227230550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2118864384).

1227230550 is an abundant number, since it is smaller than the sum of its proper divisors (3010498218).

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

1227230550 is a wasteful number, since it uses less digits than its factorization.

1227230550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1364 (or 1356 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 27.

The square root of 1227230550 is about 35031.8505077879. The cubic root of 1227230550 is about 1070.6365182383.

Adding to 1227230550 its reverse (550327221), we get a palindrome (1777557771).

The spelling of 1227230550 in words is "one billion, two hundred twenty-seven million, two hundred thirty thousand, five hundred fifty".