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49028643 = 3243151839
BaseRepresentation
bin1011101100000…
…1111000100011
310102020220122200
42323001320203
5100022404033
64510504243
71133510436
oct273017043
9112226580
1049028643
1125747a44
1214505083
13a208241
14672381d
154487013
hex2ec1e23

49028643 has 24 divisors (see below), whose sum is σ = 73032960. Its totient is φ = 31676400.

The previous prime is 49028621. The next prime is 49028653. The reversal of 49028643 is 34682094.

It is a happy number.

49028643 is a `hidden beast` number, since 4 + 9 + 0 + 2 + 8 + 643 = 666.

49028643 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 49028643 - 25 = 49028611 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 49028598 and 49028607.

It is not an unprimeable number, because it can be changed into a prime (49028653) 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 23 ways as a sum of consecutive naturals, for example, 58018 + ... + 58856.

It is an arithmetic number, because the mean of its divisors is an integer number (3043040).

Almost surely, 249028643 is an apocalyptic number.

49028643 is a gapful number since it is divisible by the number (43) formed by its first and last digit.

49028643 is a deficient number, since it is larger than the sum of its proper divisors (24004317).

49028643 is a wasteful number, since it uses less digits than its factorization.

49028643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1039 (or 1036 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

The square root of 49028643 is about 7002.0456296714. The cubic root of 49028643 is about 366.0018588099.

The spelling of 49028643 in words is "forty-nine million, twenty-eight thousand, six hundred forty-three".

Divisors: 1 3 9 43 129 151 387 453 839 1359 2517 6493 7551 19479 36077 58437 108231 126689 324693 380067 1140201 5447627 16342881 49028643