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161414773 = 1326191543
BaseRepresentation
bin10011001111011…
…11111001110101
3102020201201102221
421213233321311
5312310233043
624003402341
74000001002
oct1147577165
9366651387
10161414773
1183129343
12460833b1
1327597700
141761a8a9
15e2868ed
hex99efe75

161414773 has 12 divisors (see below), whose sum is σ = 175182240. Its totient is φ = 148661136.

The previous prime is 161414741. The next prime is 161414797. The reversal of 161414773 is 377414161.

It is not a de Polignac number, because 161414773 - 25 = 161414741 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 (161424773) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 103840 + ... + 105382.

It is an arithmetic number, because the mean of its divisors is an integer number (14598520).

Almost surely, 2161414773 is an apocalyptic number.

161414773 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

161414773 is a deficient number, since it is larger than the sum of its proper divisors (13767467).

161414773 is a wasteful number, since it uses less digits than its factorization.

161414773 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2188 (or 2175 counting only the distinct ones).

The product of its digits is 14112, while the sum is 34.

The square root of 161414773 is about 12704.9113731659. The cubic root of 161414773 is about 544.4789487395.

The spelling of 161414773 in words is "one hundred sixty-one million, four hundred fourteen thousand, seven hundred seventy-three".

Divisors: 1 13 169 619 1543 8047 20059 104611 260767 955117 12416521 161414773