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47919701959 = 73964843981
BaseRepresentation
bin101100101000001111…
…001001111111000111
311120200121101002012021
4230220033021333013
51241114420430314
634003005304011
73314331513613
oct545017117707
9146617332167
1047919701959
1119360471378
129354265007
134698a8c73c
142468332343
1513a6e20324
hexb283c9fc7

47919701959 has 4 divisors (see below), whose sum is σ = 47984546680. Its totient is φ = 47854857240.

The previous prime is 47919701957. The next prime is 47919701971. The reversal of 47919701959 is 95910791974.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 47919701959 - 21 = 47919701957 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 47919701897 and 47919701906.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47919701953) 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, 32421252 + ... + 32422729.

It is an arithmetic number, because the mean of its divisors is an integer number (11996136670).

Almost surely, 247919701959 is an apocalyptic number.

47919701959 is a deficient number, since it is larger than the sum of its proper divisors (64844721).

47919701959 is an equidigital number, since it uses as much as digits as its factorization.

47919701959 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64844720.

The product of its (nonzero) digits is 6429780, while the sum is 61.

The spelling of 47919701959 in words is "forty-seven billion, nine hundred nineteen million, seven hundred one thousand, nine hundred fifty-nine".

Divisors: 1 739 64843981 47919701959