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242706144 = 253171271171
BaseRepresentation
bin11100111011101…
…10011011100000
3121220200202020110
432131312123200
5444113044034
640030011320
76004653042
oct1635663340
9556622213
10242706144
1111500179a
1269346b40
133b38a805
142433ba92
1516492de9
hexe7766e0

242706144 has 96 divisors (see below), whose sum is σ = 680472576. Its totient is φ = 75479040.

The previous prime is 242706119. The next prime is 242706157. The reversal of 242706144 is 441607242.

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

It is a congruent number.

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, 206679 + ... + 207849.

It is an arithmetic number, because the mean of its divisors is an integer number (7088256).

Almost surely, 2242706144 is an apocalyptic number.

242706144 is a gapful number since it is divisible by the number (24) 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 242706144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (340236288).

242706144 is an abundant number, since it is smaller than the sum of its proper divisors (437766432).

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

242706144 is a wasteful number, since it uses less digits than its factorization.

242706144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1328 (or 1320 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 30.

The square root of 242706144 is about 15579.0289812941. The cubic root of 242706144 is about 623.7735042542.

The spelling of 242706144 in words is "two hundred forty-two million, seven hundred six thousand, one hundred forty-four".

Divisors: 1 2 3 4 6 8 12 16 17 24 32 34 48 51 68 96 102 127 136 204 254 272 381 408 508 544 762 816 1016 1171 1524 1632 2032 2159 2342 3048 3513 4064 4318 4684 6096 6477 7026 8636 9368 12192 12954 14052 17272 18736 19907 25908 28104 34544 37472 39814 51816 56208 59721 69088 79628 103632 112416 119442 148717 159256 207264 238884 297434 318512 446151 477768 594868 637024 892302 955536 1189736 1784604 1911072 2379472 2528189 3569208 4758944 5056378 7138416 7584567 10112756 14276832 15169134 20225512 30338268 40451024 60676536 80902048 121353072 242706144