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8525087949 = 37834891043
BaseRepresentation
bin1111111000010001…
…01000010011001101
3211000010110100011010
413330020220103031
5114424410303244
63525534115433
7421155023550
oct77410502315
924003410133
108525087949
11368520a834
12179b04bb79
13a5b270451
145ac310697
1534d66beb9
hex1fc2284cd

8525087949 has 16 divisors (see below), whose sum is σ = 13147126272. Its totient is φ = 4812785328.

The previous prime is 8525087927. The next prime is 8525087951. The reversal of 8525087949 is 9497805258.

It is a happy number.

It is not a de Polignac number, because 8525087949 - 27 = 8525087821 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8525087999) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2443779 + ... + 2447264.

It is an arithmetic number, because the mean of its divisors is an integer number (821695392).

Almost surely, 28525087949 is an apocalyptic number.

It is an amenable number.

8525087949 is a deficient number, since it is larger than the sum of its proper divisors (4622038323).

8525087949 is a wasteful number, since it uses less digits than its factorization.

8525087949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4891136.

The product of its (nonzero) digits is 7257600, while the sum is 57.

The square root of 8525087949 is about 92331.4028324058. The cubic root of 8525087949 is about 2042.8334288846.

The spelling of 8525087949 in words is "eight billion, five hundred twenty-five million, eighty-seven thousand, nine hundred forty-nine".

Divisors: 1 3 7 21 83 249 581 1743 4891043 14673129 34237301 102711903 405956569 1217869707 2841695983 8525087949