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242703680 = 265758449
BaseRepresentation
bin11100111011101…
…01110101000000
3121220200121212012
432131311311000
5444113004210
640025552052
76004642622
oct1635656500
9556617765
10242703680
11114aaa95a
1269345628
133b38965b
142433ac12
1516492305
hexe775d40

242703680 has 28 divisors (see below), whose sum is σ = 577938900. Its totient is φ = 97081344.

The previous prime is 242703677. The next prime is 242703691. The reversal of 242703680 is 86307242.

It can be written as a sum of positive squares in 2 ways, for example, as 96196864 + 146506816 = 9808^2 + 12104^2 .

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 378905 + ... + 379544.

It is an arithmetic number, because the mean of its divisors is an integer number (20640675).

Almost surely, 2242703680 is an apocalyptic number.

242703680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

242703680 is an abundant number, since it is smaller than the sum of its proper divisors (335235220).

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

242703680 is an equidigital number, since it uses as much as digits as its factorization.

242703680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 758466 (or 758456 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 32.

The square root of 242703680 is about 15578.9499004265. The cubic root of 242703680 is about 623.7713933570.

The spelling of 242703680 in words is "two hundred forty-two million, seven hundred three thousand, six hundred eighty".

Divisors: 1 2 4 5 8 10 16 20 32 40 64 80 160 320 758449 1516898 3033796 3792245 6067592 7584490 12135184 15168980 24270368 30337960 48540736 60675920 121351840 242703680