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102854720 = 2652931097
BaseRepresentation
bin1100010000101…
…11000001000000
321011112120011002
412020113001000
5202312322340
614112311132
72356151663
oct610270100
9234476132
10102854720
1153071301
122a5424a8
1318402ca7
14d9356da
15906a715
hex6217040

102854720 has 56 divisors (see below), whose sum is σ = 245982744. Its totient is φ = 40964096.

The previous prime is 102854701. The next prime is 102854767. The reversal of 102854720 is 27458201.

It can be written as a sum of positive squares in 4 ways, for example, as 22429696 + 80425024 = 4736^2 + 8968^2 .

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, 93212 + ... + 94308.

It is an arithmetic number, because the mean of its divisors is an integer number (4392549).

Almost surely, 2102854720 is an apocalyptic number.

102854720 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 102854720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (122991372).

102854720 is an abundant number, since it is smaller than the sum of its proper divisors (143128024).

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

102854720 is a wasteful number, since it uses less digits than its factorization.

102854720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1407 (or 1397 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 29.

The square root of 102854720 is about 10141.7316075708. The cubic root of 102854720 is about 468.5343204516.

The spelling of 102854720 in words is "one hundred two million, eight hundred fifty-four thousand, seven hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 32 40 64 80 160 293 320 586 1097 1172 1465 2194 2344 2930 4388 4688 5485 5860 8776 9376 10970 11720 17552 18752 21940 23440 35104 43880 46880 70208 87760 93760 175520 321421 351040 642842 1285684 1607105 2571368 3214210 5142736 6428420 10285472 12856840 20570944 25713680 51427360 102854720