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21703214360 = 2351940936977
BaseRepresentation
bin10100001101100111…
…001100010100011000
32002000112102112010002
4110031213030110120
5323422010324420
613545331112132
71365553164302
oct241547142430
962015375102
1021703214360
1192279981a3
124258442648
13207b50b299
14109c5a6972
15870557075
hex50d9cc518

21703214360 has 64 divisors (see below), whose sum is σ = 51422277600. Its totient is φ = 8221188096.

The previous prime is 21703214347. The next prime is 21703214363. The reversal of 21703214360 is 6341230712.

It is a happy number.

It is a super-2 number, since 2×217032143602 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21703214363) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3107192 + ... + 3114168.

Almost surely, 221703214360 is an apocalyptic number.

21703214360 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21703214360 is an abundant number, since it is smaller than the sum of its proper divisors (29719063240).

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

21703214360 is a wasteful number, since it uses less digits than its factorization.

21703214360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11100 (or 11096 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 29.

The spelling of 21703214360 in words is "twenty-one billion, seven hundred three million, two hundred fourteen thousand, three hundred sixty".

Divisors: 1 2 4 5 8 10 19 20 38 40 76 95 152 190 380 760 4093 6977 8186 13954 16372 20465 27908 32744 34885 40930 55816 69770 77767 81860 132563 139540 155534 163720 265126 279080 311068 388835 530252 622136 662815 777670 1060504 1325630 1555340 2651260 3110680 5302520 28556861 57113722 114227444 142784305 228454888 285568610 542580359 571137220 1085160718 1142274440 2170321436 2712901795 4340642872 5425803590 10851607180 21703214360