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253151241 = 3759204319
BaseRepresentation
bin11110001011011…
…00100000001001
3122122100102012220
433011230200021
51004301314431
641041524253
76162515160
oct1705544011
9578312186
10253151241
1111a996302
1270943689
13405a6b45
142589a3d7
1517357b96
hexf16c809

253151241 has 16 divisors (see below), whose sum is σ = 392294400. Its totient is φ = 142205328.

The previous prime is 253151221. The next prime is 253151243. The reversal of 253151241 is 142151352.

It is a happy number.

It is not a de Polignac number, because 253151241 - 27 = 253151113 is a prime.

It is not an unprimeable number, because it can be changed into a prime (253151243) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 100921 + ... + 103398.

It is an arithmetic number, because the mean of its divisors is an integer number (24518400).

Almost surely, 2253151241 is an apocalyptic number.

253151241 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

253151241 is a deficient number, since it is larger than the sum of its proper divisors (139143159).

253151241 is a wasteful number, since it uses less digits than its factorization.

253151241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204388.

The product of its digits is 1200, while the sum is 24.

The square root of 253151241 is about 15910.7272303940. The cubic root of 253151241 is about 632.5963574966.

The spelling of 253151241 in words is "two hundred fifty-three million, one hundred fifty-one thousand, two hundred forty-one".

Divisors: 1 3 7 21 59 177 413 1239 204319 612957 1430233 4290699 12054821 36164463 84383747 253151241