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253682465 = 5234121673
BaseRepresentation
bin11110001111011…
…10001100100001
3122200100101220212
433013232030201
51004420314330
641101143505
76200160011
oct1707561441
9580311825
10253682465
11120219433
1270b5ab95
134073188a
1425997c41
1517410295
hexf1ee321

253682465 has 8 divisors (see below), whose sum is σ = 304563048. Its totient is φ = 202849920.

The previous prime is 253682461. The next prime is 253682467. The reversal of 253682465 is 564286352.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 114725521 + 138956944 = 10711^2 + 11788^2 .

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

It is not a de Polignac number, because 253682465 - 22 = 253682461 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (253682461) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 869 + ... + 22541.

It is an arithmetic number, because the mean of its divisors is an integer number (38070381).

Almost surely, 2253682465 is an apocalyptic number.

It is an amenable number.

253682465 is a deficient number, since it is larger than the sum of its proper divisors (50880583).

253682465 is a wasteful number, since it uses less digits than its factorization.

253682465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24019.

The product of its digits is 345600, while the sum is 41.

The square root of 253682465 is about 15927.4123761520. The cubic root of 253682465 is about 633.0385379347.

The spelling of 253682465 in words is "two hundred fifty-three million, six hundred eighty-two thousand, four hundred sixty-five".

Divisors: 1 5 2341 11705 21673 108365 50736493 253682465