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122117353 = 375362273
BaseRepresentation
bin1110100011101…
…01110011101001
322111210012111221
413101311303221
5222230223403
620041222041
73011660161
oct721656351
9274705457
10122117353
1162a28636
1234a91921
131c3b88b7
141230b5a1
15aac2dbd
hex7475ce9

122117353 has 8 divisors (see below), whose sum is σ = 127786248. Its totient is φ = 116573184.

The previous prime is 122117329. The next prime is 122117363. The reversal of 122117353 is 353711221.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 46131264 + 75986089 = 6792^2 + 8717^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-122117353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122117323) 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, 29176 + ... + 33097.

It is an arithmetic number, because the mean of its divisors is an integer number (15973281).

Almost surely, 2122117353 is an apocalyptic number.

It is an amenable number.

122117353 is a deficient number, since it is larger than the sum of its proper divisors (5668895).

122117353 is an equidigital number, since it uses as much as digits as its factorization.

122117353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62363.

The product of its digits is 1260, while the sum is 25.

The square root of 122117353 is about 11050.6720610106. The cubic root of 122117353 is about 496.1265407823.

Adding to 122117353 its reverse (353711221), we get a palindrome (475828574).

The spelling of 122117353 in words is "one hundred twenty-two million, one hundred seventeen thousand, three hundred fifty-three".

Divisors: 1 37 53 1961 62273 2304101 3300469 122117353