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102481641 = 3211386849
BaseRepresentation
bin1100001101110…
…11111011101001
321010211121101100
412012323323221
5202213403031
614100312013
72353036203
oct606737351
9233747340
10102481641
1152936a79
122a3a2609
1318302232
14d879773
158ee4de6
hex61bbee9

102481641 has 6 divisors (see below), whose sum is σ = 148029050. Its totient is φ = 68321088.

The previous prime is 102481637. The next prime is 102481651. The reversal of 102481641 is 146184201.

It is a happy number.

102481641 is a `hidden beast` number, since 10 + 2 + 4 + 8 + 1 + 641 = 666.

It can be written as a sum of positive squares in only one way, i.e., 94478400 + 8003241 = 9720^2 + 2829^2 .

It is not a de Polignac number, because 102481641 - 22 = 102481637 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102481651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5693416 + ... + 5693433.

Almost surely, 2102481641 is an apocalyptic number.

It is an amenable number.

102481641 is a deficient number, since it is larger than the sum of its proper divisors (45547409).

102481641 is a wasteful number, since it uses less digits than its factorization.

102481641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11386855 (or 11386852 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 27.

The square root of 102481641 is about 10123.3216386718. The cubic root of 102481641 is about 467.9671382799.

The spelling of 102481641 in words is "one hundred two million, four hundred eighty-one thousand, six hundred forty-one".

Divisors: 1 3 9 11386849 34160547 102481641