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19472002742 = 217587975649
BaseRepresentation
bin10010001000100111…
…110010111010110110
31212021001000020011202
4102020213302322312
5304334313041432
612540104332502
71256351202203
oct221047627266
955231006152
1019472002742
11829248a955
123935174132
131ab419c31a
14d2a122caa
1578e722462
hex4889f2eb6

19472002742 has 16 divisors (see below), whose sum is σ = 30978838800. Its totient is φ = 9147675648.

The previous prime is 19472002723. The next prime is 19472002747. The reversal of 19472002742 is 24720027491.

It is a junction number, because it is equal to n+sod(n) for n = 19472002696 and 19472002705.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19472002747) 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, 467867 + ... + 507782.

It is an arithmetic number, because the mean of its divisors is an integer number (1936177425).

Almost surely, 219472002742 is an apocalyptic number.

19472002742 is a deficient number, since it is larger than the sum of its proper divisors (11506836058).

19472002742 is a wasteful number, since it uses less digits than its factorization.

19472002742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 976255.

The product of its (nonzero) digits is 56448, while the sum is 38.

The spelling of 19472002742 in words is "nineteen billion, four hundred seventy-two million, two thousand, seven hundred forty-two".

Divisors: 1 2 17 34 587 1174 9979 19958 975649 1951298 16586033 33172066 572705963 1145411926 9736001371 19472002742