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9963161407 = 71547725621
BaseRepresentation
bin10010100011101100…
…11100011100111111
3221201100110001002001
421101312130130333
5130401032131112
64324345043131
7501616321543
oct112166343477
927640401061
109963161407
114252a436a1
121b207864a7
13c2a18c8a4
146a72d3a23
153d4a32c57
hex251d9c73f

9963161407 has 8 divisors (see below), whose sum is σ = 10105726752. Its totient is φ = 9820658400.

The previous prime is 9963161401. The next prime is 9963161477. The reversal of 9963161407 is 7041613699.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-9963161407 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9963161401) 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, 376057 + ... + 401677.

It is an arithmetic number, because the mean of its divisors is an integer number (1263215844).

Almost surely, 29963161407 is an apocalyptic number.

9963161407 is a deficient number, since it is larger than the sum of its proper divisors (142565345).

9963161407 is a wasteful number, since it uses less digits than its factorization.

9963161407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31169.

The product of its (nonzero) digits is 244944, while the sum is 46.

The square root of 9963161407 is about 99815.6370865808. The cubic root of 9963161407 is about 2151.7858900057.

The spelling of 9963161407 in words is "nine billion, nine hundred sixty-three million, one hundred sixty-one thousand, four hundred seven".

Divisors: 1 71 5477 25621 388867 1819091 140326217 9963161407