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102411040 = 255640069
BaseRepresentation
bin1100001101010…
…10101100100000
321010201000112111
412012222230200
5202204123130
614055005104
72352323314
oct606525440
9233630474
10102411040
1152898a26
122a369794
13182a9064
14d85bb44
158ece02a
hex61aab20

102411040 has 24 divisors (see below), whose sum is σ = 241946460. Its totient is φ = 40964352.

The previous prime is 102411031. The next prime is 102411053. The reversal of 102411040 is 40114201.

It can be written as a sum of positive squares in 2 ways, for example, as 97693456 + 4717584 = 9884^2 + 2172^2 .

It is a super-2 number, since 2×1024110402 = 20976042227763200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 102411040.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 319875 + ... + 320194.

Almost surely, 2102411040 is an apocalyptic number.

102411040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102411040 is an abundant number, since it is smaller than the sum of its proper divisors (139535420).

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

102411040 is an equidigital number, since it uses as much as digits as its factorization.

102411040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 640084 (or 640076 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 102411040 is about 10119.8339907332. The cubic root of 102411040 is about 467.8596506119.

Adding to 102411040 its reverse (40114201), we get a palindrome (142525241).

The spelling of 102411040 in words is "one hundred two million, four hundred eleven thousand, forty".

Divisors: 1 2 4 5 8 10 16 20 32 40 80 160 640069 1280138 2560276 3200345 5120552 6400690 10241104 12801380 20482208 25602760 51205520 102411040