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385283480 = 23519514937
BaseRepresentation
bin10110111101101…
…111010110011000
3222211222102120112
4112331233112120
51242113032410
6102121543452
712355566311
oct2675572630
9884872515
10385283480
111885341aa
12a9044b88
1361a8acba
1439253608
1523c58105
hex16f6f598

385283480 has 32 divisors (see below), whose sum is σ = 867507840. Its totient is φ = 154003200.

The previous prime is 385283471. The next prime is 385283491. The reversal of 385283480 is 84382583.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75572 + ... + 80508.

It is an arithmetic number, because the mean of its divisors is an integer number (27109620).

Almost surely, 2385283480 is an apocalyptic number.

It is an amenable number.

385283480 is an abundant number, since it is smaller than the sum of its proper divisors (482224360).

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

385283480 is a wasteful number, since it uses less digits than its factorization.

385283480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6899 (or 6895 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 41.

The square root of 385283480 is about 19628.6392803984. The cubic root of 385283480 is about 727.6571414148.

The spelling of 385283480 in words is "three hundred eighty-five million, two hundred eighty-three thousand, four hundred eighty".

Divisors: 1 2 4 5 8 10 20 40 1951 3902 4937 7804 9755 9874 15608 19510 19748 24685 39020 39496 49370 78040 98740 197480 9632087 19264174 38528348 48160435 77056696 96320870 192641740 385283480