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1013031200 = 25524912579
BaseRepresentation
bin111100011000011…
…010000100100000
32121121012022120002
4330120122010200
54033313444300
6244304435132
734050423506
oct7430320440
92547168502
101013031200
1147a914375
12243318aa8
13131b5065c
1498780676
155de075d5
hex3c61a120

1013031200 has 72 divisors (see below), whose sum is σ = 2479060080. Its totient is φ = 404230400.

The previous prime is 1013031181. The next prime is 1013031221. The reversal of 1013031200 is 21303101.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 391511 + ... + 394089.

It is an arithmetic number, because the mean of its divisors is an integer number (34431390).

Almost surely, 21013031200 is an apocalyptic number.

1013031200 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 1013031200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1239530040).

1013031200 is an abundant number, since it is smaller than the sum of its proper divisors (1466028880).

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

1013031200 is a wasteful number, since it uses less digits than its factorization.

1013031200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3090 (or 3077 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 11.

The square root of 1013031200 is about 31828.1510615995. The cubic root of 1013031200 is about 1004.3250007347.

Adding to 1013031200 its reverse (21303101), we get a palindrome (1034334301).

The spelling of 1013031200 in words is "one billion, thirteen million, thirty-one thousand, two hundred".

Divisors: 1 2 4 5 8 10 16 20 25 32 40 50 80 100 160 200 400 491 800 982 1964 2455 2579 3928 4910 5158 7856 9820 10316 12275 12895 15712 19640 20632 24550 25790 39280 41264 49100 51580 64475 78560 82528 98200 103160 128950 196400 206320 257900 392800 412640 515800 1031600 1266289 2063200 2532578 5065156 6331445 10130312 12662890 20260624 25325780 31657225 40521248 50651560 63314450 101303120 126628900 202606240 253257800 506515600 1013031200