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122730293 = 7171031347
BaseRepresentation
bin1110101000010…
…11011100110101
322112221100022102
413110023130311
5222404332133
620102311445
73020122160
oct724133465
9275840272
10122730293
11633070a4
1235128585
131c57189a
141242aad7
15ab947e8
hex750b735

122730293 has 8 divisors (see below), whose sum is σ = 148514112. Its totient is φ = 99009216.

The previous prime is 122730287. The next prime is 122730313. The reversal of 122730293 is 392037221.

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 122730293 - 214 = 122713909 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122730263) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 515555 + ... + 515792.

It is an arithmetic number, because the mean of its divisors is an integer number (18564264).

Almost surely, 2122730293 is an apocalyptic number.

It is an amenable number.

122730293 is a deficient number, since it is larger than the sum of its proper divisors (25783819).

122730293 is a wasteful number, since it uses less digits than its factorization.

122730293 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1031371.

The product of its (nonzero) digits is 4536, while the sum is 29.

The square root of 122730293 is about 11078.3705029214. The cubic root of 122730293 is about 496.9552202690.

The spelling of 122730293 in words is "one hundred twenty-two million, seven hundred thirty thousand, two hundred ninety-three".

Divisors: 1 7 17 119 1031347 7219429 17532899 122730293