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10212230730 = 2351394127827
BaseRepresentation
bin10011000001011001…
…00100011001001010
3222100201010001221210
421200230210121022
5131403312340410
64405203313550
7511032346302
oct114054443112
928321101853
1010212230730
1143705a1109
121b9007b8b6
13c699677a0
146cc40a602
153eb831220
hex260b2464a

10212230730 has 64 divisors (see below), whose sum is σ = 26423687808. Its totient is φ = 2511018240.

The previous prime is 10212230729. The next prime is 10212230737. The reversal of 10212230730 is 3703221201.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 10212230697 and 10212230706.

It is not an unprimeable number, because it can be changed into a prime (10212230737) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 353077 + ... + 380903.

It is an arithmetic number, because the mean of its divisors is an integer number (412870122).

Almost surely, 210212230730 is an apocalyptic number.

10212230730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 10212230730, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13211843904).

10212230730 is an abundant number, since it is smaller than the sum of its proper divisors (16211457078).

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

10212230730 is a wasteful number, since it uses less digits than its factorization.

10212230730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28791.

The product of its (nonzero) digits is 504, while the sum is 21.

Adding to 10212230730 its reverse (3703221201), we get a palindrome (13915451931).

The spelling of 10212230730 in words is "ten billion, two hundred twelve million, two hundred thirty thousand, seven hundred thirty".

Divisors: 1 2 3 5 6 10 13 15 26 30 39 65 78 130 195 390 941 1882 2823 4705 5646 9410 12233 14115 24466 27827 28230 36699 55654 61165 73398 83481 122330 139135 166962 183495 278270 361751 366990 417405 723502 834810 1085253 1808755 2170506 3617510 5426265 10852530 26185207 52370414 78555621 130926035 157111242 261852070 340407691 392778105 680815382 785556210 1021223073 1702038455 2042446146 3404076910 5106115365 10212230730