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191428848 = 243213102259
BaseRepresentation
bin10110110100011…
…11100011110000
3111100012121000100
423122033203300
5343001210343
630554552400
74513055412
oct1332174360
9440177010
10191428848
1199069366
1254138700
1330875c10
141b5d09b2
1511c149d3
hexb68f8f0

191428848 has 60 divisors (see below), whose sum is σ = 576950920. Its totient is φ = 58900608.

The previous prime is 191428847. The next prime is 191428871. The reversal of 191428848 is 848824191.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (191428843) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 49258 + ... + 53001.

Almost surely, 2191428848 is an apocalyptic number.

191428848 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

191428848 is an abundant number, since it is smaller than the sum of its proper divisors (385522072).

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

191428848 is a wasteful number, since it uses less digits than its factorization.

191428848 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102286 (or 102277 counting only the distinct ones).

The product of its digits is 147456, while the sum is 45.

The square root of 191428848 is about 13835.7814379962. The cubic root of 191428848 is about 576.3272156996.

The spelling of 191428848 in words is "one hundred ninety-one million, four hundred twenty-eight thousand, eight hundred forty-eight".

Divisors: 1 2 3 4 6 8 9 12 13 16 18 24 26 36 39 48 52 72 78 104 117 144 156 208 234 312 468 624 936 1872 102259 204518 306777 409036 613554 818072 920331 1227108 1329367 1636144 1840662 2454216 2658734 3681324 3988101 4908432 5317468 7362648 7976202 10634936 11964303 14725296 15952404 21269872 23928606 31904808 47857212 63809616 95714424 191428848