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253063738 = 2711782139
BaseRepresentation
bin11110001010101…
…11001000111010
3122122011222012001
433011113020322
51004241014423
641040011214
76162002104
oct1705271072
9578158161
10253063738
1111a936594
1270900b0a
1340576075
1425876574
151733bcad
hexf15723a

253063738 has 8 divisors (see below), whose sum is σ = 384942240. Its totient is φ = 124749660.

The previous prime is 253063721. The next prime is 253063753. The reversal of 253063738 is 837360352.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 253063697 and 253063706.

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, 890928 + ... + 891211.

It is an arithmetic number, because the mean of its divisors is an integer number (48117780).

Almost surely, 2253063738 is an apocalyptic number.

253063738 is a deficient number, since it is larger than the sum of its proper divisors (131878502).

253063738 is a wasteful number, since it uses less digits than its factorization.

253063738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1782212.

The product of its (nonzero) digits is 90720, while the sum is 37.

The square root of 253063738 is about 15907.9771812761. The cubic root of 253063738 is about 632.5234623926.

The spelling of 253063738 in words is "two hundred fifty-three million, sixty-three thousand, seven hundred thirty-eight".

Divisors: 1 2 71 142 1782139 3564278 126531869 253063738