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553212000 = 253253112127
BaseRepresentation
bin100000111110010…
…101100001100000
31102112222002012100
4200332111201200
52113110241000
6130521130400
716465136655
oct4076254140
91375862170
10553212000
11264301400
12135329a00
138a7c64a3
1453687c2c
1533879a00
hex20f95860

553212000 has 432 divisors, whose sum is σ = 2175054336. Its totient is φ = 133056000.

The previous prime is 553211987. The next prime is 553212001. The reversal of 553212000 is 212355.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (553212001) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 4355937 + ... + 4356063.

It is an arithmetic number, because the mean of its divisors is an integer number (5034848).

Almost surely, 2553212000 is an apocalyptic number.

553212000 is a gapful number since it is divisible by the number (50) 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 553212000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1087527168).

553212000 is an abundant number, since it is smaller than the sum of its proper divisors (1621842336).

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

553212000 is a wasteful number, since it uses less digits than its factorization.

553212000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180 (or 148 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 18.

The square root of 553212000 is about 23520.4591791912. The cubic root of 553212000 is about 820.9131212147.

Adding to 553212000 its reverse (212355), we get a palindrome (553424355).

The spelling of 553212000 in words is "five hundred fifty-three million, two hundred twelve thousand".