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102497069 = 671529807
BaseRepresentation
bin1100001101111…
…11101100101101
321010212101112202
412012333230231
5202214401234
614100511245
72353132163
oct606775455
9233771482
10102497069
1152947624
122a3ab525
131830926c
14d881233
158ee977e
hex61bfb2d

102497069 has 4 divisors (see below), whose sum is σ = 104026944. Its totient is φ = 100967196.

The previous prime is 102497053. The next prime is 102497099. The reversal of 102497069 is 960794201.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 960794201 = 4911956811.

It is a cyclic number.

It is not a de Polignac number, because 102497069 - 24 = 102497053 is a prime.

It is a super-2 number, since 2×1024970692 = 21011298307181522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102497009) 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 3 ways as a sum of consecutive naturals, for example, 764837 + ... + 764970.

It is an arithmetic number, because the mean of its divisors is an integer number (26006736).

Almost surely, 2102497069 is an apocalyptic number.

It is an amenable number.

102497069 is a deficient number, since it is larger than the sum of its proper divisors (1529875).

102497069 is an equidigital number, since it uses as much as digits as its factorization.

102497069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1529874.

The product of its (nonzero) digits is 27216, while the sum is 38.

The square root of 102497069 is about 10124.0836128511. The cubic root of 102497069 is about 467.9906203224.

The spelling of 102497069 in words is "one hundred two million, four hundred ninety-seven thousand, sixty-nine".

Divisors: 1 67 1529807 102497069