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122443297 = 1091139941
BaseRepresentation
bin1110100110001…
…01011000100001
322112101202121221
413103011120201
5222321141142
620052215041
73014515354
oct723053041
9275352557
10122443297
1163130509
123500a481
131c4a1072
141239429b
15ab39767
hex74c5621

122443297 has 8 divisors (see below), whose sum is σ = 124672680. Its totient is φ = 120234240.

The previous prime is 122443289. The next prime is 122443309. The reversal of 122443297 is 792344221.

It can be written as a sum of positive squares in 4 ways, for example, as 5716881 + 116726416 = 2391^2 + 10804^2 .

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 122443297 - 23 = 122443289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122443267) 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, 7347 + ... + 17287.

It is an arithmetic number, because the mean of its divisors is an integer number (15584085).

Almost surely, 2122443297 is an apocalyptic number.

It is an amenable number.

122443297 is a deficient number, since it is larger than the sum of its proper divisors (2229383).

122443297 is a wasteful number, since it uses less digits than its factorization.

122443297 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10163.

The product of its digits is 24192, while the sum is 34.

The square root of 122443297 is about 11065.4099336626. The cubic root of 122443297 is about 496.5675532047.

It can be divided in two parts, 1224 and 43297, that added together give a square (44521 = 2112).

The spelling of 122443297 in words is "one hundred twenty-two million, four hundred forty-three thousand, two hundred ninety-seven".

Divisors: 1 109 113 9941 12317 1083569 1123333 122443297