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102984320 = 275374349
BaseRepresentation
bin1100010001101…
…10101010000000
321011210010221002
412020312222000
5202330444240
614115151132
72360231555
oct610665200
9234703832
10102984320
115314a70a
122a5a54a8
1318449c8a
14d96aa2c
159093d15
hex6236a80

102984320 has 64 divisors (see below), whose sum is σ = 252909000. Its totient is φ = 40071168.

The previous prime is 102984319. The next prime is 102984331. The reversal of 102984320 is 23489201.

It can be written as a sum of positive squares in 4 ways, for example, as 74511424 + 28472896 = 8632^2 + 5336^2 .

It is a tau number, because it is divible by the number of its divisors (64).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21506 + ... + 25854.

Almost surely, 2102984320 is an apocalyptic number.

102984320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 102984320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (126454500).

102984320 is an abundant number, since it is smaller than the sum of its proper divisors (149924680).

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

102984320 is an equidigital number, since it uses as much as digits as its factorization.

102984320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4405 (or 4393 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 102984320 is about 10148.1190375360. The cubic root of 102984320 is about 468.7310269061.

The spelling of 102984320 in words is "one hundred two million, nine hundred eighty-four thousand, three hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 32 37 40 64 74 80 128 148 160 185 296 320 370 592 640 740 1184 1480 2368 2960 4349 4736 5920 8698 11840 17396 21745 23680 34792 43490 69584 86980 139168 160913 173960 278336 321826 347920 556672 643652 695840 804565 1287304 1391680 1609130 2574608 2783360 3218260 5149216 6436520 10298432 12873040 20596864 25746080 51492160 102984320