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10205123330 = 257369120231
BaseRepresentation
bin10011000000100010…
…11101001100000010
3222100012201222102202
421200101131030002
5131400002421310
64404351113202
7510615055103
oct114021351402
928305658382
1010205123330
114367587226
121b89812802
13c6834971c
146cb4ba3aa
153eadca3a5
hex26045d302

10205123330 has 32 divisors (see below), whose sum is σ = 18648724608. Its totient is φ = 4020105600.

The previous prime is 10205123321. The next prime is 10205123339. The reversal of 10205123330 is 3332150201.

It is an interprime number because it is at equal distance from previous prime (10205123321) and next prime (10205123339).

It is not an unprimeable number, because it can be changed into a prime (10205123339) 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, 494315 + ... + 514545.

It is an arithmetic number, because the mean of its divisors is an integer number (582772644).

Almost surely, 210205123330 is an apocalyptic number.

10205123330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

10205123330 is a deficient number, since it is larger than the sum of its proper divisors (8443601278).

10205123330 is a wasteful number, since it uses less digits than its factorization.

10205123330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21002.

The product of its (nonzero) digits is 540, while the sum is 20.

Adding to 10205123330 its reverse (3332150201), we get a palindrome (13537273531).

The spelling of 10205123330 in words is "ten billion, two hundred five million, one hundred twenty-three thousand, three hundred thirty".

Divisors: 1 2 5 10 73 146 365 691 730 1382 3455 6910 20231 40462 50443 100886 101155 202310 252215 504430 1476863 2953726 7384315 13979621 14768630 27959242 69898105 139796210 1020512333 2041024666 5102561665 10205123330