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10213031120 = 2454110130829
BaseRepresentation
bin10011000001011111…
…00111110011010000
3222100202121201212212
421200233213303100
5131404013443440
64405232411252
7511042221635
oct114057476320
928322551785
1010213031120
114370a98496
121b903a6b28
13c69b87ba6
146cc57818c
153eb93d465
hex260be7cd0

10213031120 has 80 divisors (see below), whose sum is σ = 24566083920. Its totient is φ = 3945984000.

The previous prime is 10213031111. The next prime is 10213031137. The reversal of 10213031120 is 2113031201.

10213031120 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 262569616 + 9950461504 = 16204^2 + 99752^2 .

It is a tau number, because it is divible by the number of its divisors (80).

It is a junction number, because it is equal to n+sod(n) for n = 10213031095 and 10213031104.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 315866 + ... + 346694.

It is an arithmetic number, because the mean of its divisors is an integer number (307076049).

Almost surely, 210213031120 is an apocalyptic number.

10213031120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10213031120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12283041960).

10213031120 is an abundant number, since it is smaller than the sum of its proper divisors (14353052800).

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

10213031120 is a wasteful number, since it uses less digits than its factorization.

10213031120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30984 (or 30978 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 10213031120 its reverse (2113031201), we get a palindrome (12326062321).

The spelling of 10213031120 in words is "ten billion, two hundred thirteen million, thirty-one thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 40 41 80 82 101 164 202 205 328 404 410 505 656 808 820 1010 1616 1640 2020 3280 4040 4141 8080 8282 16564 20705 30829 33128 41410 61658 66256 82820 123316 154145 165640 246632 308290 331280 493264 616580 1233160 1263989 2466320 2527978 3113729 5055956 6227458 6319945 10111912 12454916 12639890 15568645 20223824 24909832 25279780 31137290 49819664 50559560 62274580 101119120 124549160 127662889 249098320 255325778 510651556 638314445 1021303112 1276628890 2042606224 2553257780 5106515560 10213031120