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997860801 = 37319114891
BaseRepresentation
bin111011011110100…
…010010111000001
32120112122120200110
4323132202113001
54020423021201
6243003341533
733504451110
oct7336422701
92515576613
10997860801
114722a2653
1223a2218a9
1312b96b5a2
1496751c77
155c90c6d6
hex3b7a25c1

997860801 has 16 divisors (see below), whose sum is σ = 1521128448. Its totient is φ = 569989200.

The previous prime is 997860761. The next prime is 997860817. The reversal of 997860801 is 108068799.

It is a happy number.

997860801 is a nontrivial binomial coefficient, being equal to C(44674, 2).

It is not a de Polignac number, because 997860801 - 27 = 997860673 is a prime.

It is not an unprimeable number, because it can be changed into a prime (997860821) 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, 59566 + ... + 74456.

It is an arithmetic number, because the mean of its divisors is an integer number (95070528).

Almost surely, 2997860801 is an apocalyptic number.

997860801 is the 44673-rd triangular number and also the 22337-th hexagonal number.

It is an amenable number.

997860801 is a deficient number, since it is larger than the sum of its proper divisors (523267647).

997860801 is a wasteful number, since it uses less digits than its factorization.

997860801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18092.

The product of its (nonzero) digits is 217728, while the sum is 48.

The square root of 997860801 is about 31588.9347873587. The cubic root of 997860801 is about 999.2864245979.

The spelling of 997860801 in words is "nine hundred ninety-seven million, eight hundred sixty thousand, eight hundred one".

Divisors: 1 3 7 21 3191 9573 14891 22337 44673 67011 104237 312711 47517181 142551543 332620267 997860801