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1230739200 = 28325223929
BaseRepresentation
bin100100101011011…
…1001011100000000
310011202212000210100
41021112321130000
510010032123300
6322043002400
742333052635
oct11126713400
93152760710
101230739200
115817a1639
122a4209400
13167c97a62
14b965218c
15730ad700
hex495b9700

1230739200 has 324 divisors, whose sum is σ = 4596424560. Its totient is φ = 313589760.

The previous prime is 1230739199. The next prime is 1230739217. The reversal of 1230739200 is 29370321.

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 35 ways as a sum of consecutive naturals, for example, 1324336 + ... + 1325264.

Almost surely, 21230739200 is an apocalyptic number.

1230739200 is a gapful number since it is divisible by the number (10) 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 1230739200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2298212280).

1230739200 is an abundant number, since it is smaller than the sum of its proper divisors (3365685360).

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

1230739200 is a wasteful number, since it uses less digits than its factorization.

1230739200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 984 (or 962 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 27.

The square root of 1230739200 is about 35081.8927653569. The cubic root of 1230739200 is about 1071.6558633981.

The spelling of 1230739200 in words is "one billion, two hundred thirty million, seven hundred thirty-nine thousand, two hundred".