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253422836 = 22197942209
BaseRepresentation
bin11110001101011…
…10110011110100
3122122212012202222
433012232303310
51004334012321
641051421512
76165026042
oct1706566364
9578765688
10253422836
11120061367
1270a54898
1340670654
142592b392
15173ad3ab
hexf1aecf4

253422836 has 24 divisors (see below), whose sum is σ = 472752000. Its totient is φ = 118520064.

The previous prime is 253422823. The next prime is 253422863. The reversal of 253422836 is 638224352.

It is a junction number, because it is equal to n+sod(n) for n = 253422796 and 253422805.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15101 + ... + 27108.

It is an arithmetic number, because the mean of its divisors is an integer number (19698000).

Almost surely, 2253422836 is an apocalyptic number.

It is an amenable number.

253422836 is a deficient number, since it is larger than the sum of its proper divisors (219329164).

253422836 is a wasteful number, since it uses less digits than its factorization.

253422836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42311 (or 42309 counting only the distinct ones).

The product of its digits is 69120, while the sum is 35.

The square root of 253422836 is about 15919.2599074203. The cubic root of 253422836 is about 632.8225050506.

The spelling of 253422836 in words is "two hundred fifty-three million, four hundred twenty-two thousand, eight hundred thirty-six".

Divisors: 1 2 4 19 38 76 79 158 316 1501 3002 6004 42209 84418 168836 801971 1603942 3207884 3334511 6669022 13338044 63355709 126711418 253422836