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102544004 = 2226219781
BaseRepresentation
bin1100001110010…
…11001010000100
321010221202221002
412013023022010
5202222402004
614101512432
72353416053
oct607131204
9233852832
10102544004
1152979912
122a412718
1318324734
14d89439a
15900861e
hex61cb284

102544004 has 12 divisors (see below), whose sum is σ = 179538828. Its totient is φ = 51247200.

The previous prime is 102544003. The next prime is 102544009. The reversal of 102544004 is 400445201.

It can be written as a sum of positive squares in 2 ways, for example, as 65577604 + 36966400 = 8098^2 + 6080^2 .

It is not an unprimeable number, because it can be changed into a prime (102544003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5594 + ... + 15374.

It is an arithmetic number, because the mean of its divisors is an integer number (14961569).

Almost surely, 2102544004 is an apocalyptic number.

It is an amenable number.

102544004 is a deficient number, since it is larger than the sum of its proper divisors (76994824).

102544004 is a wasteful number, since it uses less digits than its factorization.

102544004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12406 (or 12404 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 102544004 is about 10126.4013351239. The cubic root of 102544004 is about 468.0620428132.

Adding to 102544004 its reverse (400445201), we get a palindrome (502989205).

The spelling of 102544004 in words is "one hundred two million, five hundred forty-four thousand, four".

Divisors: 1 2 4 2621 5242 9781 10484 19562 39124 25636001 51272002 102544004