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1122001000 = 23531122001
BaseRepresentation
bin100001011100000…
…0110000001101000
32220012020120000121
41002320012001220
54244213013000
6303200213024
736542564641
oct10270060150
92805216017
101122001000
11526381a5a
1227390a174
1314b5b4b23
14a90286c8
156877eb1a
hex42e06068

1122001000 has 32 divisors (see below), whose sum is σ = 2625484680. Its totient is φ = 448800000.

The previous prime is 1122000953. The next prime is 1122001031. The reversal of 1122001000 is 1002211.

It can be written as a sum of positive squares in 4 ways, for example, as 548590084 + 573410916 = 23422^2 + 23946^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 560001 + ... + 562000.

Almost surely, 21122001000 is an apocalyptic number.

1122001000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1122001000 is an abundant number, since it is smaller than the sum of its proper divisors (1503483680).

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

1122001000 is a wasteful number, since it uses less digits than its factorization.

1122001000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1122022 (or 1122008 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 7.

The square root of 1122001000 is about 33496.2833759210. The cubic root of 1122001000 is about 1039.1169155553.

Adding to 1122001000 its reverse (1002211), we get a palindrome (1123003211).

It can be divided in two parts, 11 and 22001000, that multiplied together give a triangular number (242011000 = T22000).

The spelling of 1122001000 in words is "one billion, one hundred twenty-two million, one thousand".

Divisors: 1 2 4 5 8 10 20 25 40 50 100 125 200 250 500 1000 1122001 2244002 4488004 5610005 8976008 11220010 22440020 28050025 44880040 56100050 112200100 140250125 224400200 280500250 561000500 1122001000