Search a number
-
+
1230027100 = 225213789783
BaseRepresentation
bin100100101010000…
…1011100101011100
310011201111211222021
41021110023211130
510004341331400
6322015425524
742324025561
oct11124134534
93151454867
101230027100
11581355625
122a3b252a4
13167aa88b3
14b9508868
1572ebc71a
hex4950b95c

1230027100 has 36 divisors (see below), whose sum is σ = 2688671664. Its totient is φ = 488414080.

The previous prime is 1230027089. The next prime is 1230027109. The reversal of 1230027100 is 17200321.

It is a happy number.

1230027100 is a modest number, since divided by 27100 gives 12300 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1230027109) 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, 31192 + ... + 58591.

It is an arithmetic number, because the mean of its divisors is an integer number (74685324).

Almost surely, 21230027100 is an apocalyptic number.

1230027100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1230027100 is an abundant number, since it is smaller than the sum of its proper divisors (1458644564).

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

1230027100 is a wasteful number, since it uses less digits than its factorization.

1230027100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89934 (or 89927 counting only the distinct ones).

The product of its (nonzero) digits is 84, while the sum is 16.

The square root of 1230027100 is about 35071.7421865524. The cubic root of 1230027100 is about 1071.4491384835.

Adding to 1230027100 its reverse (17200321), we get a palindrome (1247227421).

The spelling of 1230027100 in words is "one billion, two hundred thirty million, twenty-seven thousand, one hundred".

Divisors: 1 2 4 5 10 20 25 50 100 137 274 548 685 1370 2740 3425 6850 13700 89783 179566 359132 448915 897830 1795660 2244575 4489150 8978300 12300271 24600542 49201084 61501355 123002710 246005420 307506775 615013550 1230027100