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385245030 = 235157263311
BaseRepresentation
bin10110111101100…
…101111101100110
3222211220110211110
4112331211331212
51242110320110
6102121045450
712355346232
oct2675457546
9884813743
10385245030
11188508325
12a9026886
1361a76651
14392435c2
1523c4ba20
hex16f65f66

385245030 has 64 divisors (see below), whose sum is σ = 937018368. Its totient is φ = 101362560.

The previous prime is 385245023. The next prime is 385245031. The reversal of 385245030 is 30542583.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (385245031) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 1238575 + ... + 1238885.

It is an arithmetic number, because the mean of its divisors is an integer number (14640912).

Almost surely, 2385245030 is an apocalyptic number.

385245030 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

385245030 is an abundant number, since it is smaller than the sum of its proper divisors (551773338).

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

385245030 is a wasteful number, since it uses less digits than its factorization.

385245030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 741.

The product of its (nonzero) digits is 14400, while the sum is 30.

The square root of 385245030 is about 19627.6598197544. The cubic root of 385245030 is about 727.6329346949.

The spelling of 385245030 in words is "three hundred eighty-five million, two hundred forty-five thousand, thirty".

Divisors: 1 2 3 5 6 10 15 30 157 263 311 314 471 526 622 785 789 933 942 1315 1555 1570 1578 1866 2355 2630 3110 3945 4665 4710 7890 9330 41291 48827 81793 82582 97654 123873 146481 163586 206455 244135 245379 247746 292962 408965 412910 488270 490758 619365 732405 817930 1226895 1238730 1464810 2453790 12841501 25683002 38524503 64207505 77049006 128415010 192622515 385245030