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67228452 = 22324014657
BaseRepresentation
bin1000000000111…
…01001100100100
311200111120002200
410000131030210
5114202302302
610400534500
71444301214
oct400351444
9150446080
1067228452
1134a48805
121a621430
1310c0b165
148d00244
155d7e81c
hex401d324

67228452 has 36 divisors (see below), whose sum is σ = 170398956. Its totient is φ = 22348800.

The previous prime is 67228411. The next prime is 67228453. The reversal of 67228452 is 25482276.

It can be written as a sum of positive squares in 2 ways, for example, as 42068196 + 25160256 = 6486^2 + 5016^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (67228453) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12108 + ... + 16764.

Almost surely, 267228452 is an apocalyptic number.

It is an amenable number.

67228452 is an abundant number, since it is smaller than the sum of its proper divisors (103170504).

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

67228452 is a wasteful number, since it uses less digits than its factorization.

67228452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5068 (or 5063 counting only the distinct ones).

The product of its digits is 53760, while the sum is 36.

The square root of 67228452 is about 8199.2958234229. The cubic root of 67228452 is about 406.6159126244.

The spelling of 67228452 in words is "sixty-seven million, two hundred twenty-eight thousand, four hundred fifty-two".

Divisors: 1 2 3 4 6 9 12 18 36 401 802 1203 1604 2406 3609 4657 4812 7218 9314 13971 14436 18628 27942 41913 55884 83826 167652 1867457 3734914 5602371 7469828 11204742 16807113 22409484 33614226 67228452