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1208328030 = 2345713397
BaseRepresentation
bin100100000000101…
…1001111101011110
310010012200102110000
41020001121331132
54433312444110
6315522355130
741641422150
oct11001317536
93105612400
101208328030
11570084808
122987bbaa6
1316344c000
14b669aad0
15711331c0
hex48059f5e

1208328030 has 320 divisors, whose sum is σ = 4063973760. Its totient is φ = 252315648.

The previous prime is 1208328019. The next prime is 1208328059. The reversal of 1208328030 is 308238021.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1208327985 and 1208328003.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 12456942 + ... + 12457038.

It is an arithmetic number, because the mean of its divisors is an integer number (12699918).

Almost surely, 21208328030 is an apocalyptic number.

1208328030 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 1208328030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2031986880).

1208328030 is an abundant number, since it is smaller than the sum of its proper divisors (2855645730).

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

1208328030 is an equidigital number, since it uses as much as digits as its factorization.

1208328030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162 (or 127 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 1208328030 is about 34761.0130749954. The cubic root of 1208328030 is about 1065.1111964832. Note that the first 4 decimals are identical.

Subtracting from 1208328030 its reverse (308238021), we obtain a palindrome (900090009).

The spelling of 1208328030 in words is "one billion, two hundred eight million, three hundred twenty-eight thousand, thirty".