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1230308352 = 21034713163
BaseRepresentation
bin100100101010101…
…0000010000000000
310011202001010210000
41021111100100000
510004424331402
6322025440000
742326306550
oct11125202000
93152033700
101230308352
11581527969
122a4040000
13167b76910
14b957d160
1573025c1c
hex49550400

1230308352 has 440 divisors, whose sum is σ = 4549514816. Its totient is φ = 322486272.

The previous prime is 1230308351. The next prime is 1230308381. The reversal of 1230308352 is 2538030321.

1230308352 is a `hidden beast` number, since 1 + 2 + 3 + 0 + 308 + 352 = 666.

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

It is not an unprimeable number, because it can be changed into a prime (1230308351) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 7547823 + ... + 7547985.

Almost surely, 21230308352 is an apocalyptic number.

1230308352 is a gapful number since it is divisible by the number (12) 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 1230308352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2274757408).

1230308352 is an abundant number, since it is smaller than the sum of its proper divisors (3319206464).

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

1230308352 is a wasteful number, since it uses less digits than its factorization.

1230308352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 215 (or 188 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 1230308352 is about 35075.7516241634. The cubic root of 1230308352 is about 1071.5307963721.

Adding to 1230308352 its reverse (2538030321), we get a palindrome (3768338673).

The spelling of 1230308352 in words is "one billion, two hundred thirty million, three hundred eight thousand, three hundred fifty-two".