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252078897 = 3771169067
BaseRepresentation
bin11110000011001…
…10101100110001
3122120022221020110
433001212230301
51004013011042
641002531533
76150430620
oct1701465461
9576287213
10252078897
1111a323674
1270506ba9
13402bca15
142569b6b7
15171e509c
hexf066b31

252078897 has 16 divisors (see below), whose sum is σ = 389532672. Its totient is φ = 142015440.

The previous prime is 252078889. The next prime is 252078917. The reversal of 252078897 is 798870252.

252078897 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 252078897 - 23 = 252078889 is a prime.

It is not an unprimeable number, because it can be changed into a prime (252078097) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 83043 + ... + 86024.

It is an arithmetic number, because the mean of its divisors is an integer number (24345792).

Almost surely, 2252078897 is an apocalyptic number.

It is an amenable number.

252078897 is a deficient number, since it is larger than the sum of its proper divisors (137453775).

252078897 is a wasteful number, since it uses less digits than its factorization.

252078897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169148.

The product of its (nonzero) digits is 564480, while the sum is 48.

The square root of 252078897 is about 15876.9926938322. The cubic root of 252078897 is about 631.7018711181.

The spelling of 252078897 in words is "two hundred fifty-two million, seventy-eight thousand, eight hundred ninety-seven".

Divisors: 1 3 7 21 71 213 497 1491 169067 507201 1183469 3550407 12003757 36011271 84026299 252078897