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161488627 = 174125651
BaseRepresentation
bin10011010000000…
…01111011110011
3102020212110202021
421220001323303
5312320114002
624005132311
74000426216
oct1150017363
9366773667
10161488627
1183179883
12460ba097
13275c2201
141763977d
15e29d737
hex9a01ef3

161488627 has 12 divisors (see below), whose sum is σ = 175291128. Its totient is φ = 148256000.

The previous prime is 161488571. The next prime is 161488633. The reversal of 161488627 is 726884161.

161488627 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2k-161488627 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (161488637) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25752 + ... + 31402.

It is an arithmetic number, because the mean of its divisors is an integer number (14607594).

Almost surely, 2161488627 is an apocalyptic number.

161488627 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

161488627 is a deficient number, since it is larger than the sum of its proper divisors (13802501).

161488627 is an equidigital number, since it uses as much as digits as its factorization.

161488627 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5750 (or 5709 counting only the distinct ones).

The product of its digits is 129024, while the sum is 43.

The square root of 161488627 is about 12707.8175545607. The cubic root of 161488627 is about 544.5619766975.

The spelling of 161488627 in words is "one hundred sixty-one million, four hundred eighty-eight thousand, six hundred twenty-seven".

Divisors: 1 17 41 697 1681 5651 28577 96067 231691 3938747 9499331 161488627