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20345444150 = 25219311913617
BaseRepresentation
bin10010111100101011…
…101101011100110110
31221111220112122112112
4102330223231130312
5313131413203100
613202505251022
71320115264463
oct227453553466
957456478475
1020345444150
1186a0522359
123b39793a72
131bc3127265
14db012866a
157e1254b35
hex4bcaed736

20345444150 has 96 divisors (see below), whose sum is σ = 41345925120. Its totient is φ = 7420032000.

The previous prime is 20345444129. The next prime is 20345444179. The reversal of 20345444150 is 5144454302.

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, 5623142 + ... + 5626758.

It is an arithmetic number, because the mean of its divisors is an integer number (430686720).

Almost surely, 220345444150 is an apocalyptic number.

20345444150 is an abundant number, since it is smaller than the sum of its proper divisors (21000480970).

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

20345444150 is a wasteful number, since it uses less digits than its factorization.

20345444150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3870 (or 3865 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 32.

Adding to 20345444150 its reverse (5144454302), we get a palindrome (25489898452).

The spelling of 20345444150 in words is "twenty billion, three hundred forty-five million, four hundred forty-four thousand, one hundred fifty".

Divisors: 1 2 5 10 19 25 31 38 50 62 95 155 190 191 310 382 475 589 775 950 955 1178 1550 1910 2945 3617 3629 4775 5890 5921 7234 7258 9550 11842 14725 18085 18145 29450 29605 36170 36290 59210 68723 90425 90725 112127 112499 137446 148025 180850 181450 224254 224998 296050 343615 560635 562495 687230 690847 1121270 1124990 1381694 1718075 2130413 2803175 2812475 3436150 3454235 4260826 5606350 5624950 6908470 10652065 13126093 17271175 21304130 21416257 26252186 34542350 42832514 53260325 65630465 106520650 107081285 131260930 214162570 328152325 406908883 535406425 656304650 813817766 1070812850 2034544415 4069088830 10172722075 20345444150