Search a number
-
+
49286909 = 77040987
BaseRepresentation
bin1011110000000…
…0111011111101
310102202000221002
42330000323331
5100104140114
64520220045
71135634420
oct274007375
9112660832
1049286909
1125903a91
121460a625
13a298969
14678d9b7
1544d87de
hex2f00efd

49286909 has 4 divisors (see below), whose sum is σ = 56327904. Its totient is φ = 42245916.

The previous prime is 49286837. The next prime is 49286911. The reversal of 49286909 is 90968294.

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 49286909 - 216 = 49221373 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49286929) 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, 3520487 + ... + 3520500.

It is an arithmetic number, because the mean of its divisors is an integer number (14081976).

Almost surely, 249286909 is an apocalyptic number.

It is an amenable number.

49286909 is a deficient number, since it is larger than the sum of its proper divisors (7040995).

49286909 is an equidigital number, since it uses as much as digits as its factorization.

49286909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7040994.

The product of its (nonzero) digits is 279936, while the sum is 47.

The square root of 49286909 is about 7020.4635886813. The cubic root of 49286909 is about 366.6433909008.

The spelling of 49286909 in words is "forty-nine million, two hundred eighty-six thousand, nine hundred nine".

Divisors: 1 7 7040987 49286909