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385047070 = 2551477481
BaseRepresentation
bin10110111100110…
…101101000011110
3222211112102021121
4112330311220132
51242033001240
6102112521154
712353563132
oct2674655036
9884472247
10385047070
11188392621
12a8b501ba
1361a07505
14391d13c2
1523c0d04a
hex16f35a1e

385047070 has 16 divisors (see below), whose sum is σ = 693312048. Its totient is φ = 153968320.

The previous prime is 385047011. The next prime is 385047073. The reversal of 385047070 is 70740583.

It is a super-2 number, since 2×3850470702 = 296522492231169800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (385047073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47730 + ... + 55210.

It is an arithmetic number, because the mean of its divisors is an integer number (43332003).

Almost surely, 2385047070 is an apocalyptic number.

385047070 is a deficient number, since it is larger than the sum of its proper divisors (308264978).

385047070 is a wasteful number, since it uses less digits than its factorization.

385047070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12635.

The product of its (nonzero) digits is 23520, while the sum is 34.

The square root of 385047070 is about 19622.6162883546. The cubic root of 385047070 is about 727.5082807873.

The spelling of 385047070 in words is "three hundred eighty-five million, forty-seven thousand, seventy".

Divisors: 1 2 5 10 5147 7481 10294 14962 25735 37405 51470 74810 38504707 77009414 192523535 385047070