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104969749 = 791328731
BaseRepresentation
bin1100100000110…
…11011000010101
321022112000102111
412100123120111
5203333012444
614225511021
72413141153
oct620333025
9238460374
10104969749
1154286365
122b1a2471
13189938a1
14dd263d3
159337234
hex641b615

104969749 has 4 divisors (see below), whose sum is σ = 106298560. Its totient is φ = 103640940.

The previous prime is 104969743. The next prime is 104969773. The reversal of 104969749 is 947969401.

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.

It is a cyclic number.

It is not a de Polignac number, because 104969749 - 23 = 104969741 is a prime.

It is a super-2 number, since 2×1049697492 = 22037296410246002, 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 (104969741) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 664287 + ... + 664444.

It is an arithmetic number, because the mean of its divisors is an integer number (26574640).

Almost surely, 2104969749 is an apocalyptic number.

It is an amenable number.

104969749 is a deficient number, since it is larger than the sum of its proper divisors (1328811).

104969749 is an equidigital number, since it uses as much as digits as its factorization.

104969749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1328810.

The product of its (nonzero) digits is 489888, while the sum is 49.

The square root of 104969749 is about 10245.4745619713. The cubic root of 104969749 is about 471.7240873433.

It can be divided in two parts, 1049697 and 49, that multiplied together give a triangular number (51435153 = T10142).

The spelling of 104969749 in words is "one hundred four million, nine hundred sixty-nine thousand, seven hundred forty-nine".

Divisors: 1 79 1328731 104969749