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161061052342 = 27913133123509
BaseRepresentation
bin1001010111111111111…
…1001001111110110110
3120101201121210012011211
42111333333021332312
510114323112133332
6201553533152034
714431146233161
oct2257777117666
9511647705154
10161061052342
116233a846523
122726b02b61a
131225a031a48
147b1c7d4ad8
1542c9bcd447
hex257ffc9fb6

161061052342 has 32 divisors (see below), whose sum is σ = 247272537600. Its totient is φ = 78662469600.

The previous prime is 161061052337. The next prime is 161061052343. The reversal of 161061052342 is 243250160161.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161061052343) 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, 6839284 + ... + 6862792.

It is an arithmetic number, because the mean of its divisors is an integer number (7727266800).

Almost surely, 2161061052342 is an apocalyptic number.

161061052342 is a deficient number, since it is larger than the sum of its proper divisors (86211485258).

161061052342 is a wasteful number, since it uses less digits than its factorization.

161061052342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24052.

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

The spelling of 161061052342 in words is "one hundred sixty-one billion, sixty-one million, fifty-two thousand, three hundred forty-two".

Divisors: 1 2 79 131 158 262 331 662 10349 20698 23509 26149 43361 47018 52298 86722 1857211 3079679 3425519 3714422 6159358 6851038 7781479 15562958 243294641 486589282 614736841 1019373749 1229473682 2038747498 80530526171 161061052342