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122402240141 = 178980900357
BaseRepresentation
bin111000111111110111…
…1011111011010001101
3102200221102102001110112
41301333233133122031
54001134433141031
6132121504445405
711562145605656
oct1617757373215
9380842361415
10122402240141
1147a01967755
121b880319865
13b708aa883c
145cd23ca52d
1532b5d2062b
hex1c7fbdf68d

122402240141 has 8 divisors (see below), whose sum is σ = 131058579960. Its totient is φ = 113907701248.

The previous prime is 122402240117. The next prime is 122402240183. The reversal of 122402240141 is 141042204221.

It can be written as a sum of positive squares in 4 ways, for example, as 8717956900 + 113684283241 = 93370^2 + 337171^2 .

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-122402240141 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122402240111) 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, 40448666 + ... + 40451691.

It is an arithmetic number, because the mean of its divisors is an integer number (16382322495).

Almost surely, 2122402240141 is an apocalyptic number.

It is an amenable number.

122402240141 is a deficient number, since it is larger than the sum of its proper divisors (8656339819).

122402240141 is an equidigital number, since it uses as much as digits as its factorization.

122402240141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80900463.

The product of its (nonzero) digits is 1024, while the sum is 23.

Adding to 122402240141 its reverse (141042204221), we get a palindrome (263444444362).

The spelling of 122402240141 in words is "one hundred twenty-two billion, four hundred two million, two hundred forty thousand, one hundred forty-one".

Divisors: 1 17 89 1513 80900357 1375306069 7200131773 122402240141