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253361495 = 51632931061
BaseRepresentation
bin11110001100111…
…11110101010111
3122122202002122002
433012133311113
51004330031440
641050225515
76164352152
oct1706376527
9578662562
10253361495
1112001a272
1270a2529b
134064b75a
1425912c99
151739a115
hexf19fd57

253361495 has 16 divisors (see below), whose sum is σ = 307232352. Its totient is φ = 200568960.

The previous prime is 253361483. The next prime is 253361497. The reversal of 253361495 is 594163352.

253361495 = T89 + T90 + ... + T1149.

It is not a de Polignac number, because 253361495 - 220 = 252312919 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253361497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 238265 + ... + 239325.

It is an arithmetic number, because the mean of its divisors is an integer number (19202022).

Almost surely, 2253361495 is an apocalyptic number.

253361495 is a deficient number, since it is larger than the sum of its proper divisors (53870857).

253361495 is a wasteful number, since it uses less digits than its factorization.

253361495 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1522.

The product of its digits is 97200, while the sum is 38.

The square root of 253361495 is about 15917.3331623108. Note that the first 3 decimals coincide. The cubic root of 253361495 is about 632.7714426992.

The spelling of 253361495 in words is "two hundred fifty-three million, three hundred sixty-one thousand, four hundred ninety-five".

Divisors: 1 5 163 293 815 1061 1465 5305 47759 172943 238795 310873 864715 1554365 50672299 253361495