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161424703 = 1119772367
BaseRepresentation
bin10011001111100…
…10010100111111
3102020202020001201
421213302110333
5312311042303
624003520331
74000041646
oct1147622477
9366666051
10161424703
1183135850
12460890a7
132759c09b
141762035d
15e28981d
hex99f253f

161424703 has 8 divisors (see below), whose sum is σ = 185368320. Its totient is φ = 139025880.

The previous prime is 161424691. The next prime is 161424713. The reversal of 161424703 is 307424161.

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

It is a cyclic number.

It is not a de Polignac number, because 161424703 - 25 = 161424671 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 (161424713) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 385975 + ... + 386392.

It is an arithmetic number, because the mean of its divisors is an integer number (23171040).

Almost surely, 2161424703 is an apocalyptic number.

161424703 is a deficient number, since it is larger than the sum of its proper divisors (23943617).

161424703 is a wasteful number, since it uses less digits than its factorization.

161424703 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 772397.

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 161424703 is about 12705.3021609090. The cubic root of 161424703 is about 544.4901136926.

Adding to 161424703 its reverse (307424161), we get a palindrome (468848864).

The spelling of 161424703 in words is "one hundred sixty-one million, four hundred twenty-four thousand, seven hundred three".

Divisors: 1 11 19 209 772367 8496037 14674973 161424703