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161414365 = 573124799
BaseRepresentation
bin10011001111011…
…11110011011101
3102020201200212211
421213233303131
5312310224430
624003400421
73666666550
oct1147576335
9366650784
10161414365
1183129002
1246083111
1327597478
141761a697
15e28672a
hex99efcdd

161414365 has 24 divisors (see below), whose sum is σ = 228787200. Its totient is φ = 107091360.

The previous prime is 161414293. The next prime is 161414381. The reversal of 161414365 is 563414161.

It is not a de Polignac number, because 161414365 - 27 = 161414237 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 31236 + ... + 36034.

It is an arithmetic number, because the mean of its divisors is an integer number (9532800).

Almost surely, 2161414365 is an apocalyptic number.

It is an amenable number.

161414365 is a deficient number, since it is larger than the sum of its proper divisors (67372835).

161414365 is an equidigital number, since it uses as much as digits as its factorization.

161414365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4873 (or 4842 counting only the distinct ones).

The product of its digits is 8640, while the sum is 31.

The square root of 161414365 is about 12704.8953163731. The cubic root of 161414365 is about 544.4784899885.

The spelling of 161414365 in words is "one hundred sixty-one million, four hundred fourteen thousand, three hundred sixty-five".

Divisors: 1 5 7 31 35 155 217 961 1085 4799 4805 6727 23995 33593 33635 148769 167965 743845 1041383 4611839 5206915 23059195 32282873 161414365