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20372304160 = 2551347208391
BaseRepresentation
bin10010111110010010…
…001011000100100000
31221120210002021112201
4102332102023010200
5313210302213120
613205305102544
71320562504525
oct227622130440
957523067481
1020372304160
1187046a870a
123b46787a54
131bc886cc60
14db391b14c
157e37ad40a
hex4be48b120

20372304160 has 96 divisors (see below), whose sum is σ = 52934902272. Its totient is φ = 7362001920.

The previous prime is 20372304149. The next prime is 20372304187. The reversal of 20372304160 is 6140327302.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6436 + ... + 201955.

It is an arithmetic number, because the mean of its divisors is an integer number (551405232).

Almost surely, 220372304160 is an apocalyptic number.

20372304160 is a gapful number since it is divisible by the number (20) 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 20372304160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26467451136).

20372304160 is an abundant number, since it is smaller than the sum of its proper divisors (32562598112).

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

20372304160 is a wasteful number, since it uses less digits than its factorization.

20372304160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208466 (or 208458 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 28.

The spelling of 20372304160 in words is "twenty billion, three hundred seventy-two million, three hundred four thousand, one hundred sixty".

Divisors: 1 2 4 5 8 10 13 16 20 26 32 40 47 52 65 80 94 104 130 160 188 208 235 260 376 416 470 520 611 752 940 1040 1222 1504 1880 2080 2444 3055 3760 4888 6110 7520 9776 12220 19552 24440 48880 97760 208391 416782 833564 1041955 1667128 2083910 2709083 3334256 4167820 5418166 6668512 8335640 9794377 10836332 13545415 16671280 19588754 21672664 27090830 33342560 39177508 43345328 48971885 54181660 78355016 86690656 97943770 108363320 127326901 156710032 195887540 216726640 254653802 313420064 391775080 433453280 509307604 636634505 783550160 1018615208 1273269010 1567100320 2037230416 2546538020 4074460832 5093076040 10186152080 20372304160