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122428531481 = 1073947289889
BaseRepresentation
bin111001000000101001…
…1110010001100011001
3102201000020212210101212
41302001103302030121
54001213201001411
6132124244152505
711562615230054
oct1620123621431
9381006783355
10122428531481
1147a15794833
121b889098735
13b711382749
145cd5ab1a9b
1532b82b568b
hex1c814f2319

122428531481 has 8 divisors (see below), whose sum is σ = 123604457760. Its totient is φ = 121253193088.

The previous prime is 122428531451. The next prime is 122428531487. The reversal of 122428531481 is 184135824221.

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 122428531481 - 210 = 122428530457 is a prime.

It is a super-2 number, since 2×1224285314812 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (122428531487) 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, 277385 + ... + 567273.

It is an arithmetic number, because the mean of its divisors is an integer number (15450557220).

Almost surely, 2122428531481 is an apocalyptic number.

It is an amenable number.

122428531481 is a deficient number, since it is larger than the sum of its proper divisors (1175926279).

122428531481 is a wasteful number, since it uses less digits than its factorization.

122428531481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 293943.

The product of its digits is 122880, while the sum is 41.

The spelling of 122428531481 in words is "one hundred twenty-two billion, four hundred twenty-eight million, five hundred thirty-one thousand, four hundred eighty-one".

Divisors: 1 107 3947 289889 422329 31018123 1144191883 122428531481