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49001881642 = 2717205890259
BaseRepresentation
bin101101101000101111…
…010110000000101010
311200111000200111122021
4231220233112000222
51300323440203032
634302224215054
73353212056460
oct555057260052
9150430614567
1049001881642
1119866314a4a
1295b676a48a
13480c04114c
14252bd52830
15141be36097
hexb68bd602a

49001881642 has 16 divisors (see below), whose sum is σ = 88944592320. Its totient is φ = 19765464768.

The previous prime is 49001881633. The next prime is 49001881667. The reversal of 49001881642 is 24618810094.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 102944892 + ... + 102945367.

It is an arithmetic number, because the mean of its divisors is an integer number (5559037020).

Almost surely, 249001881642 is an apocalyptic number.

49001881642 is a deficient number, since it is larger than the sum of its proper divisors (39942710678).

49001881642 is a wasteful number, since it uses less digits than its factorization.

49001881642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205890285.

The product of its (nonzero) digits is 110592, while the sum is 43.

The spelling of 49001881642 in words is "forty-nine billion, one million, eight hundred eighty-one thousand, six hundred forty-two".

Divisors: 1 2 7 14 17 34 119 238 205890259 411780518 1441231813 2882463626 3500134403 7000268806 24500940821 49001881642