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19343965090 = 252517706759
BaseRepresentation
bin10010000000111111…
…010111101110100010
31211221010002020112111
4102000333113232202
5304104023340330
612515252145534
71253234663452
oct220077275642
954833066474
1019343965090
11822718930a
1238ba3082aa
131a937bcab8
14d17113d62
1578338032a
hex480fd7ba2

19343965090 has 16 divisors (see below), whose sum is σ = 34957863360. Its totient is φ = 7706758000.

The previous prime is 19343965087. The next prime is 19343965097. The reversal of 19343965090 is 9056934391.

It is not an unprimeable number, because it can be changed into a prime (19343965097) 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, 3850870 + ... + 3855889.

It is an arithmetic number, because the mean of its divisors is an integer number (2184866460).

Almost surely, 219343965090 is an apocalyptic number.

19343965090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

19343965090 is a deficient number, since it is larger than the sum of its proper divisors (15613898270).

19343965090 is a wasteful number, since it uses less digits than its factorization.

19343965090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7707017.

The product of its (nonzero) digits is 787320, while the sum is 49.

The spelling of 19343965090 in words is "nineteen billion, three hundred forty-three million, nine hundred sixty-five thousand, ninety".

Divisors: 1 2 5 10 251 502 1255 2510 7706759 15413518 38533795 77067590 1934396509 3868793018 9671982545 19343965090