Search a number
-
+
102808010 = 2517604753
BaseRepresentation
bin1100010000010…
…11100111001010
321011110012002002
412020023213022
5202304324020
614111311002
72355565544
oct610134712
9234405062
10102808010
115303a1a8
122a51b462
13183b7956
14d922694
15905b975
hex620b9ca

102808010 has 16 divisors (see below), whose sum is σ = 195940296. Its totient is φ = 38704128.

The previous prime is 102808009. The next prime is 102808021. The reversal of 102808010 is 10808201.

It can be written as a sum of positive squares in 4 ways, for example, as 102677689 + 130321 = 10133^2 + 361^2 .

It is a super-4 number, since 4×1028080104 (a number of 33 digits) contains 4444 as substring.

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, 302207 + ... + 302546.

Almost surely, 2102808010 is an apocalyptic number.

102808010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

102808010 is a deficient number, since it is larger than the sum of its proper divisors (93132286).

102808010 is a wasteful number, since it uses less digits than its factorization.

102808010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 604777.

The product of its (nonzero) digits is 128, while the sum is 20.

The square root of 102808010 is about 10139.4284848802. The cubic root of 102808010 is about 468.4633836587.

The spelling of 102808010 in words is "one hundred two million, eight hundred eight thousand, ten".

Divisors: 1 2 5 10 17 34 85 170 604753 1209506 3023765 6047530 10280801 20561602 51404005 102808010