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49029268781 = 2711061317047
BaseRepresentation
bin101101101010010111…
…110100010100101101
311200112221012220201202
4231222113310110231
51300402443100111
634305043215245
73353663623403
oct555227642455
9150487186652
1049029268781
111987a820349
129603977525
13481490ca5c
142531841473
15141e545b3b
hexb6a5f452d

49029268781 has 8 divisors (see below), whose sum is σ = 49217712384. Its totient is φ = 48840881040.

The previous prime is 49029268759. The next prime is 49029268817. The reversal of 49029268781 is 18786292094.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-49029268781 is a prime.

It is a super-2 number, since 2×490292687812 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49029268711) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2867600 + ... + 2884646.

It is an arithmetic number, because the mean of its divisors is an integer number (6152214048).

Almost surely, 249029268781 is an apocalyptic number.

It is an amenable number.

49029268781 is a deficient number, since it is larger than the sum of its proper divisors (188443603).

49029268781 is a wasteful number, since it uses less digits than its factorization.

49029268781 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27931.

The product of its (nonzero) digits is 3483648, while the sum is 56.

The spelling of 49029268781 in words is "forty-nine billion, twenty-nine million, two hundred sixty-eight thousand, seven hundred eighty-one".

Divisors: 1 271 10613 17047 2876123 4619737 180919811 49029268781