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49408869 = 354730109
BaseRepresentation
bin1011110001111…
…0101101100101
310102222020020010
42330132231211
5100122040434
64523000433
71136653116
oct274365545
9112866203
1049408869
1125987684
1214669119
13a30c323
1467c220d
15450e9e9
hex2f1eb65

49408869 has 8 divisors (see below), whose sum is σ = 66001120. Its totient is φ = 32877936.

The previous prime is 49408867. The next prime is 49408871. The reversal of 49408869 is 96880494.

It is an interprime number because it is at equal distance from previous prime (49408867) and next prime (49408871).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 49408869 - 21 = 49408867 is a prime.

It is a super-2 number, since 2×494088692 = 4882472671718322, 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 (49408867) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13414 + ... + 16695.

It is an arithmetic number, because the mean of its divisors is an integer number (8250140).

Almost surely, 249408869 is an apocalyptic number.

It is an amenable number.

49408869 is a deficient number, since it is larger than the sum of its proper divisors (16592251).

49408869 is a wasteful number, since it uses less digits than its factorization.

49408869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30659.

The product of its (nonzero) digits is 497664, while the sum is 48.

The square root of 49408869 is about 7029.1442580160. The cubic root of 49408869 is about 366.9455603579.

The spelling of 49408869 in words is "forty-nine million, four hundred eight thousand, eight hundred sixty-nine".

Divisors: 1 3 547 1641 30109 90327 16469623 49408869