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122530212053 = 388033157751
BaseRepresentation
bin111001000011101011…
…1101010100011010101
3102201021100012200220222
41302013113222203111
54001420213241203
6132142315404125
711565261421634
oct1620727524325
9381240180828
10122530212053
1147a68123967
121b8b7153645
13b729464172
145d053bd51b
1532c219d038
hex1c875ea8d5

122530212053 has 4 divisors (see below), whose sum is σ = 122533408608. Its totient is φ = 122527015500.

The previous prime is 122530212023. The next prime is 122530212059. The reversal of 122530212053 is 350212035221.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 122530212053 - 210 = 122530211029 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 (122530212059) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1540073 + ... + 1617678.

It is an arithmetic number, because the mean of its divisors is an integer number (30633352152).

Almost surely, 2122530212053 is an apocalyptic number.

It is an amenable number.

122530212053 is a deficient number, since it is larger than the sum of its proper divisors (3196555).

122530212053 is an equidigital number, since it uses as much as digits as its factorization.

122530212053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3196554.

The product of its (nonzero) digits is 3600, while the sum is 26.

Adding to 122530212053 its reverse (350212035221), we get a palindrome (472742247274).

The spelling of 122530212053 in words is "one hundred twenty-two billion, five hundred thirty million, two hundred twelve thousand, fifty-three".

Divisors: 1 38803 3157751 122530212053