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253249275 = 35237263347
BaseRepresentation
bin11110001100001…
…00011011111011
3122122112101200210
433012010123323
51004312434100
641044002203
76163404036
oct1706043373
9578471623
10253249275
1111aa52a24
1270990363
134060c656
14258c401d
1517376c50
hexf1846fb

253249275 has 48 divisors (see below), whose sum is σ = 432900864. Its totient is φ = 130538880.

The previous prime is 253249259. The next prime is 253249277. The reversal of 253249275 is 572942352.

It is not a de Polignac number, because 253249275 - 24 = 253249259 is a prime.

It is not an unprimeable number, because it can be changed into a prime (253249277) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 729652 + ... + 729998.

It is an arithmetic number, because the mean of its divisors is an integer number (9018768).

Almost surely, 2253249275 is an apocalyptic number.

253249275 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

253249275 is a deficient number, since it is larger than the sum of its proper divisors (179651589).

253249275 is a wasteful number, since it uses less digits than its factorization.

253249275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 660 (or 655 counting only the distinct ones).

The product of its digits is 151200, while the sum is 39.

The square root of 253249275 is about 15913.8076838951. The cubic root of 253249275 is about 632.6780055890.

The spelling of 253249275 in words is "two hundred fifty-three million, two hundred forty-nine thousand, two hundred seventy-five".

Divisors: 1 3 5 15 25 37 75 111 185 263 347 555 789 925 1041 1315 1735 2775 3945 5205 6575 8675 9731 12839 19725 26025 29193 38517 48655 64195 91261 145965 192585 243275 273783 320975 456305 729825 962925 1368915 2281525 3376657 6844575 10129971 16883285 50649855 84416425 253249275