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161052463 = 11132322129
BaseRepresentation
bin10011001100101…
…11011100101111
3102020001022110001
421212113130233
5312212134323
623551525131
73663631465
oct1146273457
9366038401
10161052463
1182a01110
1245b297a7
132749b820
1417564835
15e2143ad
hex999772f

161052463 has 24 divisors (see below), whose sum is σ = 197885520. Its totient is φ = 129212160.

The previous prime is 161052433. The next prime is 161052473. The reversal of 161052463 is 364250161.

It is not a de Polignac number, because 161052463 - 225 = 127498031 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 (161052403) 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 23 ways as a sum of consecutive naturals, for example, 74583 + ... + 76711.

It is an arithmetic number, because the mean of its divisors is an integer number (8245230).

Almost surely, 2161052463 is an apocalyptic number.

161052463 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

161052463 is a deficient number, since it is larger than the sum of its proper divisors (36833057).

161052463 is a wasteful number, since it uses less digits than its factorization.

161052463 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2199 (or 2176 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 161052463 is about 12690.6447038754. The cubic root of 161052463 is about 544.0712662095.

The spelling of 161052463 in words is "one hundred sixty-one million, fifty-two thousand, four hundred sixty-three".

Divisors: 1 11 13 23 143 253 299 529 2129 3289 5819 6877 23419 27677 48967 75647 304447 538637 636571 1126241 7002281 12388651 14641133 161052463