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49628931 = 3111979153
BaseRepresentation
bin1011110101010…
…0011100000011
310110101102002120
42331110130003
5100201111211
64531415323
71141560522
oct275243403
9113342076
1049628931
1126017a50
1214754543
13a388541
14683c4b9
154554d06
hex2f54703

49628931 has 16 divisors (see below), whose sum is σ = 75987840. Its totient is φ = 28494720.

The previous prime is 49628921. The next prime is 49628941. The reversal of 49628931 is 13982694.

49628931 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (49628921) and next prime (49628941).

It is not a de Polignac number, because 49628931 - 211 = 49626883 is a prime.

It is a super-2 number, since 2×496289312 = 4926061584405522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (49628911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38950 + ... + 40203.

It is an arithmetic number, because the mean of its divisors is an integer number (4749240).

Almost surely, 249628931 is an apocalyptic number.

49628931 is a deficient number, since it is larger than the sum of its proper divisors (26358909).

49628931 is a wasteful number, since it uses less digits than its factorization.

49628931 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79186.

The product of its digits is 93312, while the sum is 42.

The square root of 49628931 is about 7044.7804082171. The cubic root of 49628931 is about 367.4895327668.

The spelling of 49628931 in words is "forty-nine million, six hundred twenty-eight thousand, nine hundred thirty-one".

Divisors: 1 3 11 19 33 57 209 627 79153 237459 870683 1503907 2612049 4511721 16542977 49628931