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49328641 = 179275579
BaseRepresentation
bin1011110000101…
…1001000000001
310102211011011201
42330023020001
5100112004031
64521141201
71136200165
oct274131001
9112734151
1049328641
112593237a
121462a801
13a2b195b
1467a0ca5
1544e5d61
hex2f0b201

49328641 has 4 divisors (see below), whose sum is σ = 49604400. Its totient is φ = 49052884.

The previous prime is 49328633. The next prime is 49328711. The reversal of 49328641 is 14682394.

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, and also an emirpimes, since its reverse is a distinct semiprime: 14682394 = 27341197.

It is a cyclic number.

It is not a de Polignac number, because 49328641 - 23 = 49328633 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 49328641.

It is not an unprimeable number, because it can be changed into a prime (49328621) 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, 137611 + ... + 137968.

It is an arithmetic number, because the mean of its divisors is an integer number (12401100).

Almost surely, 249328641 is an apocalyptic number.

It is an amenable number.

49328641 is a deficient number, since it is larger than the sum of its proper divisors (275759).

49328641 is a wasteful number, since it uses less digits than its factorization.

49328641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275758.

The product of its digits is 41472, while the sum is 37.

The square root of 49328641 is about 7023.4351281976. The cubic root of 49328641 is about 366.7468426142.

The spelling of 49328641 in words is "forty-nine million, three hundred twenty-eight thousand, six hundred forty-one".

Divisors: 1 179 275579 49328641