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253619068 = 221923145091
BaseRepresentation
bin11110001110111…
…10101101111100
3122200020011221211
433013132231330
51004411302233
641055534204
76166504123
oct1707365574
9580204854
10253619068
1112018583a
1270b2a364
134070ba71
142597caba
15173eb5cd
hexf1deb7c

253619068 has 24 divisors (see below), whose sum is σ = 487509120. Its totient is φ = 114911280.

The previous prime is 253619057. The next prime is 253619081. The reversal of 253619068 is 860916352.

It is a self number, because there is not a number n which added to its sum of digits gives 253619068.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 70798 + ... + 74293.

It is an arithmetic number, because the mean of its divisors is an integer number (20312880).

Almost surely, 2253619068 is an apocalyptic number.

It is an amenable number.

253619068 is a deficient number, since it is larger than the sum of its proper divisors (233890052).

253619068 is a wasteful number, since it uses less digits than its factorization.

253619068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145137 (or 145135 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 40.

The square root of 253619068 is about 15925.4220666204. The cubic root of 253619068 is about 632.9857999738.

The spelling of 253619068 in words is "two hundred fifty-three million, six hundred nineteen thousand, sixty-eight".

Divisors: 1 2 4 19 23 38 46 76 92 437 874 1748 145091 290182 580364 2756729 3337093 5513458 6674186 11026916 13348372 63404767 126809534 253619068