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28495713153601 = 133311721375253
BaseRepresentation
bin1100111101010101011001…
…10111000011001001000001
310201220011102020121021000201
412132222230313003021001
512213333210031403401
6140334425551245201
76000514223230201
oct636525467031101
9121804366537021
1028495713153601
119096a67214601
1232427b0819801
1312b9198b60555
147072b265c401
1534638b3e7b01
hex19eaacdc3241

28495713153601 has 4 divisors (see below), whose sum is σ = 28495735861972. Its totient is φ = 28495690445232.

The previous prime is 28495713153581. The next prime is 28495713153619. The reversal of 28495713153601 is 10635131759482.

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 24884284212225 + 3611428941376 = 4988415^2 + 1900376^2 .

It is a cyclic number.

It is not a de Polignac number, because 28495713153601 - 213 = 28495713145409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28495713153701) 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, 9354510 + ... + 12020743.

It is an arithmetic number, because the mean of its divisors is an integer number (7123933965493).

It is a 1-persistent number, because it is pandigital, but 2⋅28495713153601 = 56991426307202 is not.

Almost surely, 228495713153601 is an apocalyptic number.

It is an amenable number.

28495713153601 is a deficient number, since it is larger than the sum of its proper divisors (22708371).

28495713153601 is a wasteful number, since it uses less digits than its factorization.

28495713153601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22708370.

The product of its (nonzero) digits is 5443200, while the sum is 55.

The spelling of 28495713153601 in words is "twenty-eight trillion, four hundred ninety-five billion, seven hundred thirteen million, one hundred fifty-three thousand, six hundred one".

Divisors: 1 1333117 21375253 28495713153601