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243771472060 = 225416731713997
BaseRepresentation
bin1110001100000111101…
…0010111100010111100
3212022012212000212001021
43203001322113202330
512443220444101220
6303553112353524
723416612216114
oct3430172274274
9768185025037
10243771472060
1194423705aa6
123b2b26a58a4
1319cab85abbc
14bb27516044
15651b0de4aa
hex38c1e978bc

243771472060 has 96 divisors (see below), whose sum is σ = 533950014528. Its totient is φ = 93408184320.

The previous prime is 243771472003. The next prime is 243771472073. The reversal of 243771472060 is 60274177342.

It is a junction number, because it is equal to n+sod(n) for n = 243771471998 and 243771472016.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17408982 + ... + 17422978.

It is an arithmetic number, because the mean of its divisors is an integer number (5561979318).

Almost surely, 2243771472060 is an apocalyptic number.

243771472060 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 243771472060, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (266975007264).

243771472060 is an abundant number, since it is smaller than the sum of its proper divisors (290178542468).

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

243771472060 is a wasteful number, since it uses less digits than its factorization.

243771472060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14431 (or 14429 counting only the distinct ones).

The product of its (nonzero) digits is 395136, while the sum is 43.

The spelling of 243771472060 in words is "two hundred forty-three billion, seven hundred seventy-one million, four hundred seventy-two thousand, sixty".

Divisors: 1 2 4 5 10 20 41 67 82 134 164 205 268 317 335 410 634 670 820 1268 1340 1585 2747 3170 5494 6340 10988 12997 13735 13997 21239 25994 27470 27994 42478 51988 54940 55988 64985 69985 84956 106195 129970 139970 212390 259940 279940 424780 573877 870799 937799 1147754 1741598 1875598 2295508 2869385 3483196 3751196 4353995 4437049 4688995 5738770 8707990 8874098 9377990 11477540 17415980 17748196 18755980 22185245 38449759 44370490 76899518 88740980 153799036 181919009 192248795 297282283 363838018 384497590 594564566 727676036 768995180 909595045 1189129132 1486411415 1819190090 2972822830 3638380180 5945645660 12188573603 24377147206 48754294412 60942868015 121885736030 243771472060