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17980011433 = 193511918199
BaseRepresentation
bin10000101111101100…
…010011001110101001
31201102001120012212101
4100233230103032221
5243310340331213
612132050013401
71204363401256
oct205754231651
951361505771
1017980011433
11769727a78a
123599577261
131907052427
14c27d0642d
1570375abdd
hex42fb133a9

17980011433 has 8 divisors (see below), whose sum is σ = 18077696000. Its totient is φ = 17882373888.

The previous prime is 17980011431. The next prime is 17980011437. The reversal of 17980011433 is 33411008971.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 17980011433 - 21 = 17980011431 is a prime.

It is a super-2 number, since 2×179800114332 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 17980011392 and 17980011401.

It is not an unprimeable number, because it can be changed into a prime (17980011431) 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, 978868 + ... + 997066.

It is an arithmetic number, because the mean of its divisors is an integer number (2259712000).

Almost surely, 217980011433 is an apocalyptic number.

It is an amenable number.

17980011433 is a deficient number, since it is larger than the sum of its proper divisors (97684567).

17980011433 is a wasteful number, since it uses less digits than its factorization.

17980011433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23511.

The product of its (nonzero) digits is 18144, while the sum is 37.

The spelling of 17980011433 in words is "seventeen billion, nine hundred eighty million, eleven thousand, four hundred thirty-three".

Divisors: 1 193 5119 18199 987967 3512407 93160681 17980011433