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120422665 = 51119115237
BaseRepresentation
bin1110010110110…
…00000100001001
322101121002211201
413023120010021
5221312011130
615541024201
72661401326
oct713300411
9271532751
10120422665
1161a80370
12343b5061
131bc4441c
1411dc9b4d
15a88abca
hex72d8109

120422665 has 16 divisors (see below), whose sum is σ = 165942720. Its totient is φ = 82969920.

The previous prime is 120422663. The next prime is 120422669. The reversal of 120422665 is 566224021.

It is not a de Polignac number, because 120422665 - 21 = 120422663 is a prime.

It is not an unprimeable number, because it can be changed into a prime (120422663) 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 15 ways as a sum of consecutive naturals, for example, 56574 + ... + 58663.

It is an arithmetic number, because the mean of its divisors is an integer number (10371420).

Almost surely, 2120422665 is an apocalyptic number.

It is an amenable number.

120422665 is a deficient number, since it is larger than the sum of its proper divisors (45520055).

120422665 is a wasteful number, since it uses less digits than its factorization.

120422665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115272.

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 120422665 is about 10973.7261219697. The cubic root of 120422665 is about 493.8208371368.

Adding to 120422665 its reverse (566224021), we get a palindrome (686646686).

The spelling of 120422665 in words is "one hundred twenty million, four hundred twenty-two thousand, six hundred sixty-five".

Divisors: 1 5 11 19 55 95 209 1045 115237 576185 1267607 2189503 6338035 10947515 24084533 120422665