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122670620261 = 758013020923
BaseRepresentation
bin111001000111110111…
…1010001111001100101
3102201122010102011202222
41302033233101321211
54002212134322021
6132204253042125
711601615032210
oct1621757217145
9381563364688
10122670620261
114802a404702
121b936186345
13b74c585247
145d19ccc777
1532ce6856ab
hex1c8fbd1e65

122670620261 has 8 divisors (see below), whose sum is σ = 140219208384. Its totient is φ = 105128085600.

The previous prime is 122670620257. The next prime is 122670620269. The reversal of 122670620261 is 162026076221.

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 122670620261 - 22 = 122670620257 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 (122670620269) 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, 1469855 + ... + 1551068.

It is an arithmetic number, because the mean of its divisors is an integer number (17527401048).

Almost surely, 2122670620261 is an apocalyptic number.

It is an amenable number.

122670620261 is a deficient number, since it is larger than the sum of its proper divisors (17548588123).

122670620261 is an equidigital number, since it uses as much as digits as its factorization.

122670620261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3026731.

The product of its (nonzero) digits is 24192, while the sum is 35.

Adding to 122670620261 its reverse (162026076221), we get a palindrome (284696696482).

The spelling of 122670620261 in words is "one hundred twenty-two billion, six hundred seventy million, six hundred twenty thousand, two hundred sixty-one".

Divisors: 1 7 5801 40607 3020923 21146461 17524374323 122670620261