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49089769 = 83591443
BaseRepresentation
bin1011101101000…
…0110011101001
310102101000111121
42323100303221
5100031333034
64512055241
71134153601
oct273206351
9112330447
1049089769
1125789963
1214534521
13a22a001
14673bc01
15449a1b4
hex2ed0ce9

49089769 has 4 divisors (see below), whose sum is σ = 49681296. Its totient is φ = 48498244.

The previous prime is 49089767. The next prime is 49089773. The reversal of 49089769 is 96798094.

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 49089769 - 21 = 49089767 is a prime.

It is a super-2 number, since 2×490897692 = 4819610840946722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49089763) 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, 295639 + ... + 295804.

It is an arithmetic number, because the mean of its divisors is an integer number (12420324).

Almost surely, 249089769 is an apocalyptic number.

It is an amenable number.

49089769 is a deficient number, since it is larger than the sum of its proper divisors (591527).

49089769 is an equidigital number, since it uses as much as digits as its factorization.

49089769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 591526.

The product of its (nonzero) digits is 979776, while the sum is 52.

The square root of 49089769 is about 7006.4091373542. The cubic root of 49089769 is about 366.1538987688.

The spelling of 49089769 in words is "forty-nine million, eighty-nine thousand, seven hundred sixty-nine".

Divisors: 1 83 591443 49089769