Search a number
-
+
253616061 = 3619136573
BaseRepresentation
bin11110001110111…
…01111110111101
3122200020000211110
433013131332331
51004411203221
641055512233
76166462266
oct1707357675
9580200743
10253616061
11120183556
1270b28679
134070a59a
142597b96d
15173ea776
hexf1ddfbd

253616061 has 8 divisors (see below), whose sum is σ = 338703520. Its totient is φ = 168802992.

The previous prime is 253616039. The next prime is 253616117. The reversal of 253616061 is 160616352.

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

It is not a de Polignac number, because 253616061 - 215 = 253583293 is a prime.

It is a super-2 number, since 2×2536160612 = 128642212794311442, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253616261) 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, 66430 + ... + 70143.

It is an arithmetic number, because the mean of its divisors is an integer number (42337940).

Almost surely, 2253616061 is an apocalyptic number.

It is an amenable number.

253616061 is a deficient number, since it is larger than the sum of its proper divisors (85087459).

253616061 is a wasteful number, since it uses less digits than its factorization.

253616061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137195.

The product of its (nonzero) digits is 6480, while the sum is 30.

The square root of 253616061 is about 15925.3276575397. The cubic root of 253616061 is about 632.9832983272.

The spelling of 253616061 in words is "two hundred fifty-three million, six hundred sixteen thousand, sixty-one".

Divisors: 1 3 619 1857 136573 409719 84538687 253616061