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385985658 = 2364330943
BaseRepresentation
bin10111000000011…
…010110001111010
3222220022002210010
4113000122301322
51242303020113
6102145002350
712364552422
oct2700326172
9886262703
10385985658
11188973813
12a93233b6
1361c757a6
1439397482
1523d461c3
hex1701ac7a

385985658 has 8 divisors (see below), whose sum is σ = 771971328. Its totient is φ = 128661884.

The previous prime is 385985651. The next prime is 385985689. The reversal of 385985658 is 856589583.

It is a sphenic number, since it is the product of 3 distinct primes.

385985658 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 385985598 and 385985607.

It is not an unprimeable number, because it can be changed into a prime (385985651) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32165466 + ... + 32165477.

It is an arithmetic number, because the mean of its divisors is an integer number (96496416).

Almost surely, 2385985658 is an apocalyptic number.

385985658 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

385985658 is a wasteful number, since it uses less digits than its factorization.

385985658 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64330948.

The product of its digits is 10368000, while the sum is 57.

The square root of 385985658 is about 19646.5177067082. The cubic root of 385985658 is about 728.0989241351.

The spelling of 385985658 in words is "three hundred eighty-five million, nine hundred eighty-five thousand, six hundred fifty-eight".

Divisors: 1 2 3 6 64330943 128661886 192992829 385985658