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161202053313211 = 2927131365532833
BaseRepresentation
bin100100101001110011000111…
…000111111111001010111011
3210010202202200021002021102211
4210221303013013333022323
5132112113301122010321
61330503111223235551
745645315104642641
oct4451630707771273
9703682607067384
10161202053313211
1147400452625a39
12160b60555a8bb7
136bc4399801961
142bb4314649191
15139837e4520e1
hex929cc71ff2bb

161202053313211 has 16 divisors (see below), whose sum is σ = 167910848588160. Its totient is φ = 154573601495040.

The previous prime is 161202053313163. The next prime is 161202053313263. The reversal of 161202053313211 is 112313350202161.

It is a cyclic number.

It is not a de Polignac number, because 161202053313211 - 219 = 161202052788923 is a prime.

It is a super-2 number, since 2×1612020533132112 (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (161202053313281) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30306550 + ... + 35226283.

It is an arithmetic number, because the mean of its divisors is an integer number (10494428036760).

Almost surely, 2161202053313211 is an apocalyptic number.

161202053313211 is a deficient number, since it is larger than the sum of its proper divisors (6708795274949).

161202053313211 is a wasteful number, since it uses less digits than its factorization.

161202053313211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65533446.

The product of its (nonzero) digits is 6480, while the sum is 31.

The spelling of 161202053313211 in words is "one hundred sixty-one trillion, two hundred two billion, fifty-three million, three hundred thirteen thousand, two hundred eleven".

Divisors: 1 29 271 313 7859 9077 84823 2459867 65532833 1900452157 17759397743 20511776729 515022534547 594841525141 5558691493559 161202053313211