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21301010292 = 223101131134161
BaseRepresentation
bin10011110101101000…
…111001111101110100
32000222111121102212010
4103311220321331310
5322111024312132
613441402324220
71352600412552
oct236550717564
960874542763
1021301010292
119040957341
1241657b9670
1320160a7703
141060dcabd2
1584a0aa6cc
hex4f5a39f74

21301010292 has 48 divisors (see below), whose sum is σ = 50578000704. Its totient is φ = 6976320000.

The previous prime is 21301010231. The next prime is 21301010293. The reversal of 21301010292 is 29201010312.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21301010293) 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, 91692 + ... + 225852.

It is an arithmetic number, because the mean of its divisors is an integer number (1053708348).

Almost surely, 221301010292 is an apocalyptic number.

It is an amenable number.

21301010292 is an abundant number, since it is smaller than the sum of its proper divisors (29276990412).

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

21301010292 is a wasteful number, since it uses less digits than its factorization.

21301010292 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134400 (or 134398 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 21.

The spelling of 21301010292 in words is "twenty-one billion, three hundred one million, ten thousand, two hundred ninety-two".

Divisors: 1 2 3 4 6 12 101 131 202 262 303 393 404 524 606 786 1212 1572 13231 26462 39693 52924 79386 134161 158772 268322 402483 536644 804966 1609932 13550261 17575091 27100522 35150182 40650783 52725273 54201044 70300364 81301566 105450546 162603132 210901092 1775084191 3550168382 5325252573 7100336764 10650505146 21301010292