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389214224 = 24783149281
BaseRepresentation
bin10111001100101…
…111000000010000
31000010101010112122
4113030233000100
51244114323344
6102342113412
712434160230
oct2714570020
91003333478
10389214224
1118a779453
12aa41b868
1362836199
1439997cc0
1524282aee
hex1732f010

389214224 has 80 divisors (see below), whose sum is σ = 881193600. Its totient is φ = 163107840.

The previous prime is 389214193. The next prime is 389214229. The reversal of 389214224 is 422412983.

It is not an unprimeable number, because it can be changed into a prime (389214229) 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, 1384964 + ... + 1385244.

It is an arithmetic number, because the mean of its divisors is an integer number (11014920).

Almost surely, 2389214224 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 389214224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (440596800).

389214224 is an abundant number, since it is smaller than the sum of its proper divisors (491979376).

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

389214224 is a wasteful number, since it uses less digits than its factorization.

389214224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 528 (or 522 counting only the distinct ones).

The product of its digits is 27648, while the sum is 35.

The square root of 389214224 is about 19728.5129698110. The cubic root of 389214224 is about 730.1233443922.

The spelling of 389214224 in words is "three hundred eighty-nine million, two hundred fourteen thousand, two hundred twenty-four".

Divisors: 1 2 4 7 8 14 16 28 56 83 112 149 166 281 298 332 562 581 596 664 1043 1124 1162 1192 1328 1967 2086 2248 2324 2384 3934 4172 4496 4648 7868 8344 9296 12367 15736 16688 23323 24734 31472 41869 46646 49468 83738 86569 93292 98936 163261 167476 173138 186584 197872 293083 326522 334952 346276 373168 586166 653044 669904 692552 1172332 1306088 1385104 2344664 2612176 3475127 4689328 6950254 13900508 24325889 27801016 48651778 55602032 97303556 194607112 389214224