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49780454263 = 73964370717
BaseRepresentation
bin101110010111001001…
…010111001101110111
311202111021201002111021
4232113021113031313
51303422244014023
634511355522011
73411414610501
oct562711271567
9152437632437
1049780454263
111a1258500a1
129793459307
134904430cc7
1425a3500d71
15146547935d
hexb97257377

49780454263 has 8 divisors (see below), whose sum is σ = 50468325008. Its totient is φ = 49092744384.

The previous prime is 49780454257. The next prime is 49780454279. The reversal of 49780454263 is 36245408794.

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-49780454263 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 49780454263.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49780454203) 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, 668581 + ... + 739297.

It is an arithmetic number, because the mean of its divisors is an integer number (6308540626).

Almost surely, 249780454263 is an apocalyptic number.

49780454263 is a deficient number, since it is larger than the sum of its proper divisors (687870745).

49780454263 is an equidigital number, since it uses as much as digits as its factorization.

49780454263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80433.

The product of its (nonzero) digits is 5806080, while the sum is 52.

The spelling of 49780454263 in words is "forty-nine billion, seven hundred eighty million, four hundred fifty-four thousand, two hundred sixty-three".

Divisors: 1 73 9643 70717 703939 5162341 681924031 49780454263