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242795245 = 57211233917
BaseRepresentation
bin11100111100011…
…00001011101101
3121220212021110111
432132030023231
5444123421440
640031540021
76005503600
oct1636141355
9556767414
10242795245
11115062730
126938a611
133b3bc234
1424362337
15164ae4ea
hexe78c2ed

242795245 has 48 divisors (see below), whose sum is σ = 385907328. Its totient is φ = 144735360.

The previous prime is 242795237. The next prime is 242795251. The reversal of 242795245 is 542597242.

It is not a de Polignac number, because 242795245 - 23 = 242795237 is a prime.

It is a super-2 number, since 2×2427952452 = 117899061989220050, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 242795198 and 242795207.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 60027 + ... + 63943.

It is an arithmetic number, because the mean of its divisors is an integer number (8039736).

Almost surely, 2242795245 is an apocalyptic number.

It is an amenable number.

242795245 is a deficient number, since it is larger than the sum of its proper divisors (143112083).

242795245 is a wasteful number, since it uses less digits than its factorization.

242795245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3970 (or 3963 counting only the distinct ones).

The product of its digits is 201600, while the sum is 40.

The square root of 242795245 is about 15581.8883643800. Note that the first 3 decimals coincide. The cubic root of 242795245 is about 623.8498270619.

The spelling of 242795245 in words is "two hundred forty-two million, seven hundred ninety-five thousand, two hundred forty-five".

Divisors: 1 5 7 11 23 35 49 55 77 115 161 245 253 385 539 805 1127 1265 1771 2695 3917 5635 8855 12397 19585 27419 43087 61985 90091 137095 191933 215435 301609 450455 630637 959665 991001 1508045 2111263 3153185 4414459 4955005 6937007 10556315 22072295 34685035 48559049 242795245