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389064255 = 3553489389
BaseRepresentation
bin10111001100001…
…010011000111111
31000010002111211020
4113030022120333
51244100024010
6102334555223
712432664056
oct2714123077
91003074736
10389064255
1118a686808
12aa368b13
13627b2b48
143995939d
1524253470
hex1730a63f

389064255 has 16 divisors (see below), whose sum is σ = 634249440. Its totient is φ = 203585408.

The previous prime is 389064253. The next prime is 389064257. The reversal of 389064255 is 552460983.

It is an interprime number because it is at equal distance from previous prime (389064253) and next prime (389064257).

It is a cyclic number.

It is not a de Polignac number, because 389064255 - 21 = 389064253 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (389064253) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 243900 + ... + 245489.

It is an arithmetic number, because the mean of its divisors is an integer number (39640590).

Almost surely, 2389064255 is an apocalyptic number.

389064255 is a deficient number, since it is larger than the sum of its proper divisors (245185185).

389064255 is a wasteful number, since it uses less digits than its factorization.

389064255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 489450.

The product of its (nonzero) digits is 259200, while the sum is 42.

The square root of 389064255 is about 19724.7117849666. The cubic root of 389064255 is about 730.0295571944.

The spelling of 389064255 in words is "three hundred eighty-nine million, sixty-four thousand, two hundred fifty-five".

Divisors: 1 3 5 15 53 159 265 795 489389 1468167 2446945 7340835 25937617 77812851 129688085 389064255