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1200100230 = 2325719107937
BaseRepresentation
bin100011110001000…
…0001001110000110
310002122012102000200
41013202001032012
54424211201410
6315030151330
741511453330
oct10742011606
93078172020
101200100230
1156647507a
12295ab2546
1316182aca4
14b5558450
157055a3c0
hex47881386

1200100230 has 192 divisors, whose sum is σ = 3792821760. Its totient is φ = 257167872.

The previous prime is 1200100207. The next prime is 1200100259. The reversal of 1200100230 is 320010021.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1280322 + ... + 1281258.

It is an arithmetic number, because the mean of its divisors is an integer number (19754280).

Almost surely, 21200100230 is an apocalyptic number.

1200100230 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 1200100230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1896410880).

1200100230 is an abundant number, since it is smaller than the sum of its proper divisors (2592721530).

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

1200100230 is a wasteful number, since it uses less digits than its factorization.

1200100230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1083 (or 1080 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 9.

The square root of 1200100230 is about 34642.4628166070. The cubic root of 1200100230 is about 1062.6881545446.

Adding to 1200100230 its reverse (320010021), we get a palindrome (1520110251).

The spelling of 1200100230 in words is "one billion, two hundred million, one hundred thousand, two hundred thirty".