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102160561 = 414357947
BaseRepresentation
bin1100001011011…
…01100010110001
321010020021221111
412011231202301
5202123114221
614045353321
72350231126
oct605554261
9233207844
10102160561
1152737818
122a268841
131821c049
14d7d474d
158e7ebe1
hex616d8b1

102160561 has 8 divisors (see below), whose sum is σ = 107087904. Its totient is φ = 97349280.

The previous prime is 102160547. The next prime is 102160567. The reversal of 102160561 is 165061201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 102160561 - 211 = 102158513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102160567) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27211 + ... + 30736.

It is an arithmetic number, because the mean of its divisors is an integer number (13385988).

Almost surely, 2102160561 is an apocalyptic number.

It is an amenable number.

102160561 is a deficient number, since it is larger than the sum of its proper divisors (4927343).

102160561 is an equidigital number, since it uses as much as digits as its factorization.

102160561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58031.

The product of its (nonzero) digits is 360, while the sum is 22.

The square root of 102160561 is about 10107.4507666375. The cubic root of 102160561 is about 467.4779056732.

The spelling of 102160561 in words is "one hundred two million, one hundred sixty thousand, five hundred sixty-one".

Divisors: 1 41 43 1763 57947 2375827 2491721 102160561