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122230745 = 5721338377
BaseRepresentation
bin1110100100100…
…01011111011001
322111222222001122
413102101133121
5222242340440
620043455025
73012641600
oct722213731
9274888048
10122230745
1162aa584a
1234b27475
131c4283b0
141233aa37
15aae67b5
hex74917d9

122230745 has 24 divisors (see below), whose sum is σ = 183753864. Its totient is φ = 77366016.

The previous prime is 122230739. The next prime is 122230753. The reversal of 122230745 is 547032221.

It can be written as a sum of positive squares in 4 ways, for example, as 7376656 + 114854089 = 2716^2 + 10717^2 .

It is not a de Polignac number, because 122230745 - 26 = 122230681 is a prime.

It is a Curzon number.

It is a zygodrome in base 3.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16004 + ... + 22373.

It is an arithmetic number, because the mean of its divisors is an integer number (7656411).

Almost surely, 2122230745 is an apocalyptic number.

It is an amenable number.

122230745 is a deficient number, since it is larger than the sum of its proper divisors (61523119).

122230745 is a wasteful number, since it uses less digits than its factorization.

122230745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38409 (or 38402 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 26.

The square root of 122230745 is about 11055.8014182600. The cubic root of 122230745 is about 496.2800526185.

Adding to 122230745 its reverse (547032221), we get a palindrome (669262966).

The spelling of 122230745 in words is "one hundred twenty-two million, two hundred thirty thousand, seven hundred forty-five".

Divisors: 1 5 7 13 35 49 65 91 245 455 637 3185 38377 191885 268639 498901 1343195 1880473 2494505 3492307 9402365 17461535 24446149 122230745