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190012384 = 2523431599
BaseRepresentation
bin10110101001101…
…01101111100000
3111020112121222201
423110311233200
5342120344014
630504342544
74465035652
oct1324655740
9436477881
10190012384
1198291131
1253774a54
133049b283
141b3426d2
1511a34e74
hexb535be0

190012384 has 48 divisors (see below), whose sum is σ = 391910400. Its totient is φ = 90513280.

The previous prime is 190012363. The next prime is 190012387. The reversal of 190012384 is 483210091.

It is a happy number.

It is a super-2 number, since 2×1900123842 = 72209412146726912, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (190012387) 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, 316917 + ... + 317515.

It is an arithmetic number, because the mean of its divisors is an integer number (8164800).

Almost surely, 2190012384 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 190012384, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (195955200).

190012384 is an abundant number, since it is smaller than the sum of its proper divisors (201898016).

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

190012384 is a wasteful number, since it uses less digits than its factorization.

190012384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1063 (or 1055 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 190012384 is about 13784.4979596647. The cubic root of 190012384 is about 574.9021978585.

The spelling of 190012384 in words is "one hundred ninety million, twelve thousand, three hundred eighty-four".

Divisors: 1 2 4 8 16 23 32 46 92 184 368 431 599 736 862 1198 1724 2396 3448 4792 6896 9584 9913 13777 13792 19168 19826 27554 39652 55108 79304 110216 158608 220432 258169 317216 440864 516338 1032676 2065352 4130704 5937887 8261408 11875774 23751548 47503096 95006192 190012384