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20251341222 = 23721737910691
BaseRepresentation
bin10010110111000100…
…101111000110100110
31221021100110201120220
4102313010233012212
5312433320404342
613145304305210
71314563363100
oct226704570646
957240421526
1020251341222
118652399442
123b12172206
131ba9799958
14da1830570
157d7d675ec
hex4b712f1a6

20251341222 has 96 divisors (see below), whose sum is σ = 50023163520. Its totient is φ = 5430862080.

The previous prime is 20251341199. The next prime is 20251341241. The reversal of 20251341222 is 22214315202.

It is a junction number, because it is equal to n+sod(n) for n = 20251341192 and 20251341201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1888897 + ... + 1899587.

It is an arithmetic number, because the mean of its divisors is an integer number (521074620).

Almost surely, 220251341222 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20251341222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25011581760).

20251341222 is an abundant number, since it is smaller than the sum of its proper divisors (29771822298).

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

20251341222 is a wasteful number, since it uses less digits than its factorization.

20251341222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11106 (or 11099 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

Adding to 20251341222 its reverse (22214315202), we get a palindrome (42465656424).

The spelling of 20251341222 in words is "twenty billion, two hundred fifty-one million, three hundred forty-one thousand, two hundred twenty-two".

Divisors: 1 2 3 6 7 14 17 21 34 42 49 51 98 102 119 147 238 294 357 379 714 758 833 1137 1666 2274 2499 2653 4998 5306 6443 7959 10691 12886 15918 18571 19329 21382 32073 37142 38658 45101 55713 64146 74837 90202 111426 135303 149674 181747 224511 270606 315707 363494 449022 523859 545241 631414 947121 1047718 1090482 1272229 1571577 1894242 2544458 3143154 3816687 4051889 7633374 8103778 8905603 12155667 17811206 24311334 26716809 28363223 53433618 56726446 68882113 85089669 137764226 170179338 198542561 206646339 397085122 413292678 482174791 595627683 964349582 1191255366 1446524373 2893048746 3375223537 6750447074 10125670611 20251341222