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161034464 = 258956543
BaseRepresentation
bin10011001100100…
…11000011100000
3102020000101202102
421212103003200
5312211100324
623551305532
73663525143
oct1146230340
9366011672
10161034464
1182999638
1245b1b2a8
1327493586
141755c05a
15e20ddae
hex99930e0

161034464 has 24 divisors (see below), whose sum is σ = 320604480. Its totient is φ = 79611136.

The previous prime is 161034463. The next prime is 161034473. The reversal of 161034464 is 464430161.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161034463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25424 + ... + 31119.

It is an arithmetic number, because the mean of its divisors is an integer number (13358520).

Almost surely, 2161034464 is an apocalyptic number.

It is an amenable number.

161034464 is a deficient number, since it is larger than the sum of its proper divisors (159570016).

161034464 is an equidigital number, since it uses as much as digits as its factorization.

161034464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56642 (or 56634 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 29.

The square root of 161034464 is about 12689.9355396314. The cubic root of 161034464 is about 544.0509972376.

The spelling of 161034464 in words is "one hundred sixty-one million, thirty-four thousand, four hundred sixty-four".

Divisors: 1 2 4 8 16 32 89 178 356 712 1424 2848 56543 113086 226172 452344 904688 1809376 5032327 10064654 20129308 40258616 80517232 161034464