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385607790 = 2345476059
BaseRepresentation
bin10110111110111…
…110100001101110
3222212120220110000
4112332332201232
51242203422130
6102132525130
712361416651
oct2676764156
9885526400
10385607790
11188735927
12a91807a6
1361b727b9
14392d9898
1523cbe260
hex16fbe86e

385607790 has 40 divisors (see below), whose sum is σ = 1036858680. Its totient is φ = 102828528.

The previous prime is 385607767. The next prime is 385607837. The reversal of 385607790 is 97706583.

It is a happy number.

385607790 is a `hidden beast` number, since 38 + 5 + 607 + 7 + 9 + 0 = 666.

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

It is a congruent number.

It is an unprimeable number.

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 19 ways as a sum of consecutive naturals, for example, 237220 + ... + 238839.

It is an arithmetic number, because the mean of its divisors is an integer number (25921467).

Almost surely, 2385607790 is an apocalyptic number.

385607790 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

385607790 is an abundant number, since it is smaller than the sum of its proper divisors (651250890).

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

385607790 is a wasteful number, since it uses less digits than its factorization.

385607790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 476078 (or 476069 counting only the distinct ones).

The product of its (nonzero) digits is 317520, while the sum is 45.

The square root of 385607790 is about 19636.8986858923. The cubic root of 385607790 is about 727.8612511308.

The spelling of 385607790 in words is "three hundred eighty-five million, six hundred seven thousand, seven hundred ninety".

Divisors: 1 2 3 5 6 9 10 15 18 27 30 45 54 81 90 135 162 270 405 810 476059 952118 1428177 2380295 2856354 4284531 4760590 7140885 8569062 12853593 14281770 21422655 25707186 38560779 42845310 64267965 77121558 128535930 192803895 385607790