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19508320070 = 2517831094129
BaseRepresentation
bin10010001010110010…
…010101011101000110
31212100120100100011222
4102022302111131012
5304423112220240
612543443000342
71260301661501
oct221262253506
955316310158
1019508320070
118300a35678
1239453690b2
131abb876875
14d30c98138
157929e7eb5
hex48ac95746

19508320070 has 16 divisors (see below), whose sum is σ = 35134702560. Its totient is φ = 7798944384.

The previous prime is 19508320031. The next prime is 19508320099. The reversal of 19508320070 is 7002380591.

It is a self number, because there is not a number n which added to its sum of digits gives 19508320070.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 529235 + ... + 564894.

It is an arithmetic number, because the mean of its divisors is an integer number (2195918910).

Almost surely, 219508320070 is an apocalyptic number.

19508320070 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

19508320070 is a deficient number, since it is larger than the sum of its proper divisors (15626382490).

19508320070 is a wasteful number, since it uses less digits than its factorization.

19508320070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1095919.

The product of its (nonzero) digits is 15120, while the sum is 35.

The spelling of 19508320070 in words is "nineteen billion, five hundred eight million, three hundred twenty thousand, seventy".

Divisors: 1 2 5 10 1783 3566 8915 17830 1094129 2188258 5470645 10941290 1950832007 3901664014 9754160035 19508320070