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260243409894 = 231329409328109
BaseRepresentation
bin1111001001011110110…
…1110100101111100110
3220212201210212222211220
43302113231310233212
513230434303104034
6315315411241210
724542034325356
oct3622755645746
9825653788756
10260243409894
11a0406690766
124252aba9206
131b705322290
14c84b016b66
156b82258749
hex3c97b74be6

260243409894 has 64 divisors (see below), whose sum is σ = 580014993600. Its totient is φ = 77292052992.

The previous prime is 260243409863. The next prime is 260243409913. The reversal of 260243409894 is 498904342062.

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, 9244312 + ... + 9272420.

It is an arithmetic number, because the mean of its divisors is an integer number (9062734275).

Almost surely, 2260243409894 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 260243409894, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (290007496800).

260243409894 is an abundant number, since it is smaller than the sum of its proper divisors (319771583706).

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

260243409894 is a wasteful number, since it uses less digits than its factorization.

260243409894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32249.

The product of its (nonzero) digits is 2985984, while the sum is 51.

The spelling of 260243409894 in words is "two hundred sixty billion, two hundred forty-three million, four hundred nine thousand, eight hundred ninety-four".

Divisors: 1 2 3 6 13 26 29 39 58 78 87 174 377 754 1131 2262 4093 8186 12279 24558 28109 53209 56218 84327 106418 118697 159627 168654 237394 319254 356091 365417 712182 730834 815161 1096251 1543061 1630322 2192502 2445483 3086122 4629183 4890966 9258366 10597093 21194186 31791279 63582558 115050137 230100274 345150411 690300822 1495651781 2991303562 3336453973 4486955343 6672907946 8973910686 10009361919 20018723838 43373901649 86747803298 130121704947 260243409894