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388030670 = 2538803067
BaseRepresentation
bin10111001000001…
…110000011001110
31000001011000000022
4113020032003032
51243313440140
6102300502142
712421130516
oct2710160316
91001130008
10388030670
1118a040205
12a9b4a952
1362510561
143976a846
15240ec0b5
hex1720e0ce

388030670 has 8 divisors (see below), whose sum is σ = 698455224. Its totient is φ = 155212264.

The previous prime is 388030633. The next prime is 388030693. The reversal of 388030670 is 76030883.

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

It is a self number, because there is not a number n which added to its sum of digits gives 388030670.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19401524 + ... + 19401543.

It is an arithmetic number, because the mean of its divisors is an integer number (87306903).

Almost surely, 2388030670 is an apocalyptic number.

388030670 is a deficient number, since it is larger than the sum of its proper divisors (310424554).

388030670 is a wasteful number, since it uses less digits than its factorization.

388030670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38803074.

The product of its (nonzero) digits is 24192, while the sum is 35.

The square root of 388030670 is about 19698.4941048802. The cubic root of 388030670 is about 729.3825203163.

The spelling of 388030670 in words is "three hundred eighty-eight million, thirty thousand, six hundred seventy".

Divisors: 1 2 5 10 38803067 77606134 194015335 388030670