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2897056129 = 111991323461
BaseRepresentation
bin1010110010101101…
…1001000110000001
321110220022200220011
42230223121012001
521413121244004
61155245544521
7131535366532
oct25453310601
97426280804
102897056129
111257349170
1268a275141
1337227cac6
141d6a8a689
1511e50c004
hexacad9181

2897056129 has 8 divisors (see below), whose sum is σ = 3176308800. Its totient is φ = 2620450800.

The previous prime is 2897056117. The next prime is 2897056199. The reversal of 2897056129 is 9216507982.

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

It is not a de Polignac number, because 2897056129 - 215 = 2897023361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2897056199) 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, 659542 + ... + 663919.

It is an arithmetic number, because the mean of its divisors is an integer number (397038600).

Almost surely, 22897056129 is an apocalyptic number.

It is an amenable number.

2897056129 is a deficient number, since it is larger than the sum of its proper divisors (279252671).

2897056129 is a wasteful number, since it uses less digits than its factorization.

2897056129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1323671.

The product of its (nonzero) digits is 544320, while the sum is 49.

The square root of 2897056129 is about 53824.3079751147. The cubic root of 2897056129 is about 1425.5604450276.

The spelling of 2897056129 in words is "two billion, eight hundred ninety-seven million, fifty-six thousand, one hundred twenty-nine".

Divisors: 1 11 199 2189 1323461 14558071 263368739 2897056129