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49500031 = 77071433
BaseRepresentation
bin1011110011010…
…0111101111111
310110010212021111
42330310331333
5100133000111
64524542451
71140512650
oct274647577
9113125244
1049500031
1125a3a119
12146b1a27
13a341979
146807527
15452ba21
hex2f34f7f

49500031 has 4 divisors (see below), whose sum is σ = 56571472. Its totient is φ = 42428592.

The previous prime is 49500023. The next prime is 49500041. The reversal of 49500031 is 13000594.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 49500031 - 23 = 49500023 is a prime.

It is a super-2 number, since 2×495000312 = 4900506138001922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 49499975 and 49500011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49500041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3535710 + ... + 3535723.

It is an arithmetic number, because the mean of its divisors is an integer number (14142868).

Almost surely, 249500031 is an apocalyptic number.

49500031 is a deficient number, since it is larger than the sum of its proper divisors (7071441).

49500031 is an equidigital number, since it uses as much as digits as its factorization.

49500031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7071440.

The product of its (nonzero) digits is 540, while the sum is 22.

The square root of 49500031 is about 7035.6258428089. The cubic root of 49500031 is about 367.1710997510.

The spelling of 49500031 in words is "forty-nine million, five hundred thousand, thirty-one".

Divisors: 1 7 7071433 49500031