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190623230 = 2572389027
BaseRepresentation
bin10110101110010…
…10110111111110
3111021200122220122
423113022313332
5342244420410
630525414542
74503161600
oct1327126776
9437618818
10190623230
1198669066
1253a0a452
1330653315
141b461170
1511b05e55
hexb5cadfe

190623230 has 24 divisors (see below), whose sum is σ = 399142728. Its totient is φ = 65356368.

The previous prime is 190623229. The next prime is 190623253. The reversal of 190623230 is 32326091.

It is a self number, because there is not a number n which added to its sum of digits gives 190623230.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 194024 + ... + 195003.

It is an arithmetic number, because the mean of its divisors is an integer number (16630947).

Almost surely, 2190623230 is an apocalyptic number.

190623230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

190623230 is an abundant number, since it is smaller than the sum of its proper divisors (208519498).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

190623230 is a wasteful number, since it uses less digits than its factorization.

190623230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 389048 (or 389041 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 26.

The square root of 190623230 is about 13806.6371720271. The cubic root of 190623230 is about 575.5175982056.

The spelling of 190623230 in words is "one hundred ninety million, six hundred twenty-three thousand, two hundred thirty".

Divisors: 1 2 5 7 10 14 35 49 70 98 245 490 389027 778054 1945135 2723189 3890270 5446378 13615945 19062323 27231890 38124646 95311615 190623230