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41993749 = 75999107
BaseRepresentation
bin1010000000110…
…0011000010101
32221000111121001
42200030120111
541222244444
64100023301
71016640520
oct240143025
987014531
1041993749
1121782586
1212091b31
138914195
145811bb7
153a478d4
hex280c615

41993749 has 4 divisors (see below), whose sum is σ = 47992864. Its totient is φ = 35994636.

The previous prime is 41993729. The next prime is 41993759. The reversal of 41993749 is 94739914.

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: 94739914 = 247369957.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-41993749 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 41993699 and 41993708.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (41993719) 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, 2999547 + ... + 2999560.

It is an arithmetic number, because the mean of its divisors is an integer number (11998216).

Almost surely, 241993749 is an apocalyptic number.

It is an amenable number.

41993749 is a deficient number, since it is larger than the sum of its proper divisors (5999115).

41993749 is an equidigital number, since it uses as much as digits as its factorization.

41993749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5999114.

The product of its digits is 244944, while the sum is 46.

The square root of 41993749 is about 6480.2584053416. The cubic root of 41993749 is about 347.5854186786.

It can be divided in two parts, 419937 and 49, that added together give a triangular number (419986 = T916).

The spelling of 41993749 in words is "forty-one million, nine hundred ninety-three thousand, seven hundred forty-nine".

Divisors: 1 7 5999107 41993749