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152808572663081 = 1011512956164981
BaseRepresentation
bin100010101111101010000100…
…101100010011010100101001
3202001001100122011102210100022
4202233222010230103110221
5130012103424100204311
61300555142243250225
744121024611405336
oct4257520454232451
9661040564383308
10152808572663081
114476482a614465
121517b3a9979975
136735a2c13684a
1429a3d8d9a798d
15129ed7d1175db
hex8afa84b13529

152808572663081 has 4 divisors (see below), whose sum is σ = 154321528828164. Its totient is φ = 151295616498000.

The previous prime is 152808572663059. The next prime is 152808572663083. The reversal of 152808572663081 is 180366275808251.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 78086984115856 + 74721588547225 = 8836684^2 + 8644165^2 .

It is a cyclic number.

It is not a de Polignac number, because 152808572663081 - 226 = 152808505554217 is a prime.

It is a super-2 number, since 2×1528085726630812 (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (152808572663083) 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, 756478082390 + ... + 756478082591.

It is an arithmetic number, because the mean of its divisors is an integer number (38580382207041).

Almost surely, 2152808572663081 is an apocalyptic number.

It is an amenable number.

152808572663081 is a deficient number, since it is larger than the sum of its proper divisors (1512956165083).

152808572663081 is a wasteful number, since it uses less digits than its factorization.

152808572663081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1512956165082.

The product of its (nonzero) digits is 38707200, while the sum is 62.

The spelling of 152808572663081 in words is "one hundred fifty-two trillion, eight hundred eight billion, five hundred seventy-two million, six hundred sixty-three thousand, eighty-one".

Divisors: 1 101 1512956164981 152808572663081