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980280161 = 7508727529
BaseRepresentation
bin111010011011011…
…110001101100001
32112022120101120122
4322123132031201
54001422431121
6241134450025
733202146440
oct7233361541
92468511518
10980280161
11463384aa3
12234363915
13128124443
1494296d57
155b0d85ab
hex3a6de361

980280161 has 8 divisors (see below), whose sum is σ = 1120581120. Its totient is φ = 840044448.

The previous prime is 980280137. The next prime is 980280199. The reversal of 980280161 is 161082089.

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 980280161 - 26 = 980280097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (980288161) 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, 21845 + ... + 49373.

It is an arithmetic number, because the mean of its divisors is an integer number (140072640).

Almost surely, 2980280161 is an apocalyptic number.

It is an amenable number.

980280161 is a deficient number, since it is larger than the sum of its proper divisors (140300959).

980280161 is a wasteful number, since it uses less digits than its factorization.

980280161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32623.

The product of its (nonzero) digits is 6912, while the sum is 35.

The square root of 980280161 is about 31309.4260726702. The cubic root of 980280161 is about 993.3830326494.

The spelling of 980280161 in words is "nine hundred eighty million, two hundred eighty thousand, one hundred sixty-one".

Divisors: 1 7 5087 27529 35609 192703 140040023 980280161