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245554455315040 = 25519319740364939
BaseRepresentation
bin110111110101010010011010…
…000101010000001001100000
31012012102202222012011112102121
4313311102122011100021200
5224141131011030040130
62230130054235554024
7102502503212506444
oct6765223205201140
91165382865145377
10245554455315040
1171272072485573
122365a1222bb914
13a7028bb867a71
14448cc82dd2824
151d5c67cbb8d7a
hexdf549a150260

245554455315040 has 96 divisors (see below), whose sum is σ = 586088272455840. Its totient is φ = 97216854196224.

The previous prime is 245554455315031. The next prime is 245554455315047. The reversal of 245554455315040 is 40513554455542.

It is a super-2 number, since 2×2455544553150402 (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245554455315047) 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, 14099110 + ... + 26265829.

It is an arithmetic number, because the mean of its divisors is an integer number (6105086171415).

Almost surely, 2245554455315040 is an apocalyptic number.

245554455315040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

245554455315040 is an abundant number, since it is smaller than the sum of its proper divisors (340533817140800).

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

245554455315040 is a wasteful number, since it uses less digits than its factorization.

245554455315040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40365344 (or 40365336 counting only the distinct ones).

The product of its (nonzero) digits is 24000000, while the sum is 52.

The spelling of 245554455315040 in words is "two hundred forty-five trillion, five hundred fifty-four billion, four hundred fifty-five million, three hundred fifteen thousand, forty".

Divisors: 1 2 4 5 8 10 16 20 32 40 80 160 193 197 386 394 772 788 965 985 1544 1576 1930 1970 3088 3152 3860 3940 6176 6304 7720 7880 15440 15760 30880 31520 38021 76042 152084 190105 304168 380210 608336 760420 1216672 1520840 3041680 6083360 40364939 80729878 161459756 201824695 322919512 403649390 645839024 807298780 1291678048 1614597560 3229195120 6458390240 7790433227 7951892983 15580866454 15903785966 31161732908 31807571932 38952166135 39759464915 62323465816 63615143864 77904332270 79518929830 124646931632 127230287728 155808664540 159037859660 249293863264 254460575456 311617329080 318075719320 623234658160 636151438640 1246469316320 1272302877280 1534715345719 3069430691438 6138861382876 7673576728595 12277722765752 15347153457190 24555445531504 30694306914380 49110891063008 61388613828760 122777227657520 245554455315040