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49409481 = 3111978803
BaseRepresentation
bin1011110001111…
…0110111001001
310102222021001210
42330132313021
5100122100411
64523003333
71136654652
oct274366711
9112867053
1049409481
1125988090
1214669549
13a30c6a4
1467c2529
15450eca6
hex2f1edc9

49409481 has 16 divisors (see below), whose sum is σ = 75651840. Its totient is φ = 28368720.

The previous prime is 49409473. The next prime is 49409489. The reversal of 49409481 is 18490494.

It is an interprime number because it is at equal distance from previous prime (49409473) and next prime (49409489).

It is not a de Polignac number, because 49409481 - 23 = 49409473 is a prime.

It is a super-2 number, since 2×494094812 = 4882593625378722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (49409489) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38775 + ... + 40028.

It is an arithmetic number, because the mean of its divisors is an integer number (4728240).

Almost surely, 249409481 is an apocalyptic number.

It is an amenable number.

49409481 is a deficient number, since it is larger than the sum of its proper divisors (26242359).

49409481 is a wasteful number, since it uses less digits than its factorization.

49409481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78836.

The product of its (nonzero) digits is 41472, while the sum is 39.

The square root of 49409481 is about 7029.1877909187. The cubic root of 49409481 is about 366.9470754014.

The spelling of 49409481 in words is "forty-nine million, four hundred nine thousand, four hundred eighty-one".

Divisors: 1 3 11 19 33 57 209 627 78803 236409 866833 1497257 2600499 4491771 16469827 49409481