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385911084 = 2231317145517
BaseRepresentation
bin10111000000001…
…000100100101100
3222220011022111010
4113000020210230
51242243123314
6102143225220
712364122126
oct2700104454
9886138433
10385911084
11188922789
12a92a8210
1361c4a870
1439378216
1523d2e059
hex1700892c

385911084 has 48 divisors (see below), whose sum is σ = 1026775008. Its totient is φ = 111756288.

The previous prime is 385911083. The next prime is 385911103. The reversal of 385911084 is 480119583.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (385911083) 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, 70107 + ... + 75410.

It is an arithmetic number, because the mean of its divisors is an integer number (21391146).

Almost surely, 2385911084 is an apocalyptic number.

385911084 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

It is an amenable number.

385911084 is an abundant number, since it is smaller than the sum of its proper divisors (640863924).

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

385911084 is a wasteful number, since it uses less digits than its factorization.

385911084 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145554 (or 145552 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 39.

The square root of 385911084 is about 19644.6197214403. The cubic root of 385911084 is about 728.0520305565.

The spelling of 385911084 in words is "three hundred eighty-five million, nine hundred eleven thousand, eighty-four".

Divisors: 1 2 3 4 6 12 13 17 26 34 39 51 52 68 78 102 156 204 221 442 663 884 1326 2652 145517 291034 436551 582068 873102 1746204 1891721 2473789 3783442 4947578 5675163 7421367 7566884 9895156 11350326 14842734 22700652 29685468 32159257 64318514 96477771 128637028 192955542 385911084