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242472340 = 225111102147
BaseRepresentation
bin11100111001111…
…01010110010100
3121220020212112001
432130331112110
5444033103330
640021005044
76002660305
oct1634752624
9556225461
10242472340
11114962070
1269253784
133b308276
14242ba7ac
15164489ca
hexe73d594

242472340 has 24 divisors (see below), whose sum is σ = 555482592. Its totient is φ = 88171680.

The previous prime is 242472323. The next prime is 242472361. The reversal of 242472340 is 43274242.

It is a junction number, because it is equal to n+sod(n) for n = 242472299 and 242472308.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 550854 + ... + 551293.

It is an arithmetic number, because the mean of its divisors is an integer number (23145108).

Almost surely, 2242472340 is an apocalyptic number.

242472340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

242472340 is an abundant number, since it is smaller than the sum of its proper divisors (313010252).

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

242472340 is a wasteful number, since it uses less digits than its factorization.

242472340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1102167 (or 1102165 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 28.

The square root of 242472340 is about 15571.5233679945. The cubic root of 242472340 is about 623.5731418000.

The spelling of 242472340 in words is "two hundred forty-two million, four hundred seventy-two thousand, three hundred forty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 220 1102147 2204294 4408588 5510735 11021470 12123617 22042940 24247234 48494468 60618085 121236170 242472340