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21930802922 = 2728116073469
BaseRepresentation
bin10100011011001011…
…010111111011101010
32002121101200012221002
4110123023113323222
5324403241143142
614024101115002
71404315514640
oct243313277352
962541605832
1021930802922
119334403916
1243006b8a62
1320b6704a82
1410c08cb190
15885510a32
hex51b2d7eea

21930802922 has 32 divisors (see below), whose sum is σ = 37763815680. Its totient is φ = 9356941440.

The previous prime is 21930802913. The next prime is 21930802997. The reversal of 21930802922 is 22920803912.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6320204 + ... + 6323672.

It is an arithmetic number, because the mean of its divisors is an integer number (1180119240).

Almost surely, 221930802922 is an apocalyptic number.

21930802922 is a deficient number, since it is larger than the sum of its proper divisors (15833012758).

21930802922 is a wasteful number, since it uses less digits than its factorization.

21930802922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5366.

The product of its (nonzero) digits is 31104, while the sum is 38.

The spelling of 21930802922 in words is "twenty-one billion, nine hundred thirty million, eight hundred two thousand, nine hundred twenty-two".

Divisors: 1 2 7 14 281 562 1607 1967 3214 3469 3934 6938 11249 22498 24283 48566 451567 903134 974789 1949578 3160969 5574683 6321938 6823523 11149366 13647046 39022781 78045562 1566485923 3132971846 10965401461 21930802922