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193089419 = 1912298269
BaseRepresentation
bin10111000001001…
…00111110001011
3111110022221212222
423200210332023
5343412330134
631054324255
74533142625
oct1340447613
9443287788
10193089419
1199aa2a36
12547b968b
13310079c3
141b903c15
1511e41a2e
hexb824f8b

193089419 has 8 divisors (see below), whose sum is σ = 203442000. Its totient is φ = 182755872.

The previous prime is 193089409. The next prime is 193089437. The reversal of 193089419 is 914980391.

193089419 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 193089419 - 212 = 193085323 is a prime.

It is a super-2 number, since 2×1930894192 = 74567047459515122, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 193089419.

It is not an unprimeable number, because it can be changed into a prime (193089409) 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, 19217 + ... + 27485.

It is an arithmetic number, because the mean of its divisors is an integer number (25430250).

Almost surely, 2193089419 is an apocalyptic number.

193089419 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

193089419 is a deficient number, since it is larger than the sum of its proper divisors (10352581).

193089419 is a wasteful number, since it uses less digits than its factorization.

193089419 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9517.

The product of its (nonzero) digits is 69984, while the sum is 44.

The square root of 193089419 is about 13895.6618770032. The cubic root of 193089419 is about 577.9888918017.

The spelling of 193089419 in words is "one hundred ninety-three million, eighty-nine thousand, four hundred nineteen".

Divisors: 1 19 1229 8269 23351 157111 10162601 193089419