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379690290 = 23257727829
BaseRepresentation
bin10110101000011…
…001110100110010
3222110110021011100
4112220121310302
51234200042130
6101402025230
712260212530
oct2650316462
9873407140
10379690290
11185363a31
12a71a8216
1360880215
14385d9150
1523500c60
hex16a19d32

379690290 has 96 divisors (see below), whose sum is σ = 1131137280. Its totient is φ = 86562432.

The previous prime is 379690261. The next prime is 379690303. The reversal of 379690290 is 92096973.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 457596 + ... + 458424.

It is an arithmetic number, because the mean of its divisors is an integer number (11782680).

Almost surely, 2379690290 is an apocalyptic number.

379690290 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 379690290, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (565568640).

379690290 is an abundant number, since it is smaller than the sum of its proper divisors (751446990).

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

379690290 is a wasteful number, since it uses less digits than its factorization.

379690290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1576 (or 1573 counting only the distinct ones).

The product of its (nonzero) digits is 183708, while the sum is 45.

The square root of 379690290 is about 19485.6431764517. The cubic root of 379690290 is about 724.1188120896.

The spelling of 379690290 in words is "three hundred seventy-nine million, six hundred ninety thousand, two hundred ninety".

Divisors: 1 2 3 5 6 7 9 10 14 15 18 21 30 35 42 45 63 70 90 105 126 210 315 630 727 829 1454 1658 2181 2487 3635 4145 4362 4974 5089 5803 6543 7270 7461 8290 10178 10905 11606 12435 13086 14922 15267 17409 21810 24870 25445 29015 30534 32715 34818 37305 45801 50890 52227 58030 65430 74610 76335 87045 91602 104454 152670 174090 229005 261135 458010 522270 602683 1205366 1808049 3013415 3616098 4218781 5424147 6026830 8437562 9040245 10848294 12656343 18080490 21093905 25312686 27120735 37969029 42187810 54241470 63281715 75938058 126563430 189845145 379690290