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10221217930 = 2571119169499
BaseRepresentation
bin10011000010011101…
…10110100010001010
3222101100000200002001
421201032312202022
5131413112433210
64410124101214
7511201630120
oct114116664212
928340020061
1010221217930
11437567a350
121b9309480a
13c6b793361
146cd6a9910
153ec50903a
hex2613b688a

10221217930 has 64 divisors (see below), whose sum is σ = 23058432000. Its totient is φ = 3169108800.

The previous prime is 10221217927. The next prime is 10221217931. The reversal of 10221217930 is 3971212201.

It is not an unprimeable number, because it can be changed into a prime (10221217931) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 112321 + ... + 181819.

It is an arithmetic number, because the mean of its divisors is an integer number (360288000).

Almost surely, 210221217930 is an apocalyptic number.

10221217930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

10221217930 is an abundant number, since it is smaller than the sum of its proper divisors (12837214070).

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

10221217930 is a wasteful number, since it uses less digits than its factorization.

10221217930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69715.

The product of its (nonzero) digits is 1512, while the sum is 28.

The spelling of 10221217930 in words is "ten billion, two hundred twenty-one million, two hundred seventeen thousand, nine hundred thirty".

Divisors: 1 2 5 7 10 11 14 22 35 55 70 77 110 154 191 382 385 770 955 1337 1910 2101 2674 4202 6685 10505 13370 14707 21010 29414 69499 73535 138998 147070 347495 486493 694990 764489 972986 1528978 2432465 3822445 4864930 5351423 7644890 10702846 13274309 26548618 26757115 53514230 66371545 92920163 132743090 146017399 185840326 292034798 464600815 730086995 929201630 1022121793 1460173990 2044243586 5110608965 10221217930