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19489064829 = 3131672992333
BaseRepresentation
bin10010001001101000…
…111000011101111101
31212022020010001221220
4102021220320131331
5304403200033304
612541514143553
71256646213663
oct221150703575
955266101856
1019489064829
1182a1083953
12393aa21bb9
131ab7894430
14d2c4c4c33
15790e92ad9
hex489a3877d

19489064829 has 16 divisors (see below), whose sum is σ = 28151878272. Its totient is φ = 11921450688.

The previous prime is 19489064821. The next prime is 19489064831. The reversal of 19489064829 is 92846098491.

It is not a de Polignac number, because 19489064829 - 23 = 19489064821 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19489064821) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1489654 + ... + 1502679.

It is an arithmetic number, because the mean of its divisors is an integer number (1759492392).

Almost surely, 219489064829 is an apocalyptic number.

It is an amenable number.

19489064829 is a deficient number, since it is larger than the sum of its proper divisors (8662813443).

19489064829 is a wasteful number, since it uses less digits than its factorization.

19489064829 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2992516.

The product of its (nonzero) digits is 8957952, while the sum is 60.

The spelling of 19489064829 in words is "nineteen billion, four hundred eighty-nine million, sixty-four thousand, eight hundred twenty-nine".

Divisors: 1 3 13 39 167 501 2171 6513 2992333 8976999 38900329 116700987 499719611 1499158833 6496354943 19489064829