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190969 = 192232
BaseRepresentation
bin101110100111111001
3100200221221
4232213321
522102334
64032041
71423522
oct564771
9320857
10190969
11120529
1292621
1368bcc
144d849
153b8b4
hex2e9f9

190969 has 9 divisors (see below), whose sum is σ = 210693. Its totient is φ = 173052.

The previous prime is 190921. The next prime is 190979. The reversal of 190969 is 969091.

Multipling 190969 by its sum of digits (34), we get a palindrome (6492946).

190969 = T436 + T437.

It is a happy number.

The square root of 190969 is 437.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 190969 - 215 = 158201 is a prime.

It is a super-2 number, since 2×1909692 = 72938317922, which contains 22 as substring.

It is a Duffinian number.

It is a plaindrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (190909) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 8292 + ... + 8314.

2190969 is an apocalyptic number.

190969 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

190969 is the 437-th square number.

190969 is the 219-th centered octagonal number.

It is an amenable number.

190969 is a deficient number, since it is larger than the sum of its proper divisors (19724).

190969 is an equidigital number, since it uses as much as digits as its factorization.

190969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84 (or 42 counting only the distinct ones).

The product of its (nonzero) digits is 4374, while the sum is 34.

The cubic root of 190969 is about 57.5865363658.

The spelling of 190969 in words is "one hundred ninety thousand, nine hundred sixty-nine".

Divisors: 1 19 23 361 437 529 8303 10051 190969