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163925007 = 3263207763
BaseRepresentation
bin10011100010101…
…00110000001111
3102102110020211120
421301110300033
5313431100012
624133252023
74030224321
oct1161246017
9372406746
10163925007
1184593314
1246a94013
1327c6615c
1417ab1611
15e5d058c
hex9c54c0f

163925007 has 8 divisors (see below), whose sum is σ = 219398784. Its totient is φ = 108867288.

The previous prime is 163924973. The next prime is 163925009. The reversal of 163925007 is 700529361.

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

It is not a de Polignac number, because 163925007 - 27 = 163924879 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163925009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 103093 + ... + 104670.

It is an arithmetic number, because the mean of its divisors is an integer number (27424848).

Almost surely, 2163925007 is an apocalyptic number.

163925007 is a deficient number, since it is larger than the sum of its proper divisors (55473777).

163925007 is a wasteful number, since it uses less digits than its factorization.

163925007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208029.

The product of its (nonzero) digits is 11340, while the sum is 33.

The square root of 163925007 is about 12803.3201553347. The cubic root of 163925007 is about 547.2869219424.

The spelling of 163925007 in words is "one hundred sixty-three million, nine hundred twenty-five thousand, seven".

Divisors: 1 3 263 789 207763 623289 54641669 163925007