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102696493 = 379270967
BaseRepresentation
bin1100001111100…
…00011000101101
321011020112002211
412013300120231
5202242241433
614105050421
72354622454
oct607603055
9234215084
10102696493
1152a73439
122a486a11
1318378c73
14d8d3b9b
1590388cd
hex61f062d

102696493 has 4 divisors (see below), whose sum is σ = 102967840. Its totient is φ = 102425148.

The previous prime is 102696491. The next prime is 102696553. The reversal of 102696493 is 394696201.

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: 394696201 = 974069033.

It is a cyclic number.

It is not a de Polignac number, because 102696493 - 21 = 102696491 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102696491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 135105 + ... + 135862.

It is an arithmetic number, because the mean of its divisors is an integer number (25741960).

Almost surely, 2102696493 is an apocalyptic number.

It is an amenable number.

102696493 is a deficient number, since it is larger than the sum of its proper divisors (271347).

102696493 is an equidigital number, since it uses as much as digits as its factorization.

102696493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 271346.

The product of its (nonzero) digits is 69984, while the sum is 40.

The square root of 102696493 is about 10133.9278169918. The cubic root of 102696493 is about 468.2939398849.

The spelling of 102696493 in words is "one hundred two million, six hundred ninety-six thousand, four hundred ninety-three".

Divisors: 1 379 270967 102696493