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243161088 = 2113192083
BaseRepresentation
bin11100111111001…
…01100000000000
3121221112212022020
432133211200000
5444222123323
640043441440
76011556312
oct1637454000
9557485266
10243161088
11115292585
1269526280
133b4b9901
14244197b2
1516532ae3
hexe7e5800

243161088 has 96 divisors (see below), whose sum is σ = 682718400. Its totient is φ = 76750848.

The previous prime is 243161063. The next prime is 243161089. The reversal of 243161088 is 880161342.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243161089) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 115695 + ... + 117777.

It is an arithmetic number, because the mean of its divisors is an integer number (7111650).

Almost surely, 2243161088 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 243161088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (341359200).

243161088 is an abundant number, since it is smaller than the sum of its proper divisors (439557312).

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

243161088 is a wasteful number, since it uses less digits than its factorization.

243161088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2127 (or 2107 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 33.

The square root of 243161088 is about 15593.6233121106. The cubic root of 243161088 is about 624.1630080382.

The spelling of 243161088 in words is "two hundred forty-three million, one hundred sixty-one thousand, eighty-eight".

Divisors: 1 2 3 4 6 8 12 16 19 24 32 38 48 57 64 76 96 114 128 152 192 228 256 304 384 456 512 608 768 912 1024 1216 1536 1824 2048 2083 2432 3072 3648 4166 4864 6144 6249 7296 8332 9728 12498 14592 16664 19456 24996 29184 33328 38912 39577 49992 58368 66656 79154 99984 116736 118731 133312 158308 199968 237462 266624 316616 399936 474924 533248 633232 799872 949848 1066496 1266464 1599744 1899696 2132992 2532928 3199488 3799392 4265984 5065856 6398976 7598784 10131712 12797952 15197568 20263424 30395136 40526848 60790272 81053696 121580544 243161088