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1021200230 = 25234440001
BaseRepresentation
bin111100110111100…
…100011101100110
32122011120100100202
4330313210131212
54042411401410
6245155510502
734210026101
oct7467443546
92564510322
101021200230
11484493936
12245bb8432
131337509bb
14998a9738
155e9bcca5
hex3cde4766

1021200230 has 16 divisors (see below), whose sum is σ = 1918080864. Its totient is φ = 390720000.

The previous prime is 1021200209. The next prime is 1021200241. The reversal of 1021200230 is 320021201.

It is a happy number.

It is a congruent number.

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, 2219771 + ... + 2220230.

It is an arithmetic number, because the mean of its divisors is an integer number (119880054).

Almost surely, 21021200230 is an apocalyptic number.

1021200230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1021200230 is a deficient number, since it is larger than the sum of its proper divisors (896880634).

1021200230 is a wasteful number, since it uses less digits than its factorization.

1021200230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4440031.

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 1021200230 is about 31956.2236504879. The cubic root of 1021200230 is about 1007.0173844614.

Adding to 1021200230 its reverse (320021201), we get a palindrome (1341221431).

The spelling of 1021200230 in words is "one billion, twenty-one million, two hundred thousand, two hundred thirty".

Divisors: 1 2 5 10 23 46 115 230 4440001 8880002 22200005 44400010 102120023 204240046 510600115 1021200230