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21030402202 = 2471131979891
BaseRepresentation
bin10011100101100000…
…100111100010011010
32000021122102010100021
4103211200213202122
5321032240332302
613354454301054
71343103316645
oct234540474232
960248363307
1021030402202
118a12128497
1240ab05778a
131ca1ccab94
1410370a8a5c
15831455437
hex4e582789a

21030402202 has 16 divisors (see below), whose sum is σ = 32501907072. Its totient is φ = 10200393280.

The previous prime is 21030402193. The next prime is 21030402229. The reversal of 21030402202 is 20220403012.

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, 979324 + ... + 1000567.

It is an arithmetic number, because the mean of its divisors is an integer number (2031369192).

Almost surely, 221030402202 is an apocalyptic number.

21030402202 is a deficient number, since it is larger than the sum of its proper divisors (11471504870).

21030402202 is a wasteful number, since it uses less digits than its factorization.

21030402202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1980053.

The product of its (nonzero) digits is 192, while the sum is 16.

Adding to 21030402202 its reverse (20220403012), we get a palindrome (41250805214).

The spelling of 21030402202 in words is "twenty-one billion, thirty million, four hundred two thousand, two hundred two".

Divisors: 1 2 47 94 113 226 5311 10622 1979891 3959782 93054877 186109754 223727683 447455366 10515201101 21030402202