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1225150005 = 3581676667
BaseRepresentation
bin100100100000110…
…0100111000110101
310011101100001212010
41021001210320311
510002114300010
6321323114433
742234413622
oct11101447065
93141301763
101225150005
11579624372
122a2372a19
13166a8ba41
14b89d9349
1572857620
hex49064e35

1225150005 has 8 divisors (see below), whose sum is σ = 1960240032. Its totient is φ = 653413328.

The previous prime is 1225149997. The next prime is 1225150019. The reversal of 1225150005 is 5000515221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1225150005 - 23 = 1225149997 is a prime.

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 7 ways as a sum of consecutive naturals, for example, 40838319 + ... + 40838348.

It is an arithmetic number, because the mean of its divisors is an integer number (245030004).

Almost surely, 21225150005 is an apocalyptic number.

1225150005 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1225150005 is a deficient number, since it is larger than the sum of its proper divisors (735090027).

1225150005 is an equidigital number, since it uses as much as digits as its factorization.

1225150005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81676675.

The product of its (nonzero) digits is 500, while the sum is 21.

The square root of 1225150005 is about 35002.1428629734. The cubic root of 1225150005 is about 1070.0311531967.

Adding to 1225150005 its reverse (5000515221), we get a palindrome (6225665226).

The spelling of 1225150005 in words is "one billion, two hundred twenty-five million, one hundred fifty thousand, five".

Divisors: 1 3 5 15 81676667 245030001 408383335 1225150005