Search a number
-
+
102103430 = 25112136491
BaseRepresentation
bin1100001010111…
…11100110000110
321010010101120112
412011133212012
5202114302210
614044233022
72346602432
oct605374606
9233111515
10102103430
11526a8900
122a23b772
13181cc040
14d7bb9c2
158e6cd05
hex615f986

102103430 has 48 divisors (see below), whose sum is σ = 217585872. Its totient is φ = 34267200.

The previous prime is 102103427. The next prime is 102103451. The reversal of 102103430 is 34301201.

It is a super-2 number, since 2×1021034302 = 20850220835529800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12485 + ... + 18975.

It is an arithmetic number, because the mean of its divisors is an integer number (4533039).

Almost surely, 2102103430 is an apocalyptic number.

102103430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

102103430 is an abundant number, since it is smaller than the sum of its proper divisors (115482442).

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

102103430 is a wasteful number, since it uses less digits than its factorization.

102103430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6533 (or 6522 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 102103430 is about 10104.6241889543. The cubic root of 102103430 is about 467.3907472498.

Adding to 102103430 its reverse (34301201), we get a palindrome (136404631).

The spelling of 102103430 in words is "one hundred two million, one hundred three thousand, four hundred thirty".

Divisors: 1 2 5 10 11 13 22 26 55 65 110 121 130 143 242 286 605 715 1210 1430 1573 3146 6491 7865 12982 15730 32455 64910 71401 84383 142802 168766 357005 421915 714010 785411 843830 928213 1570822 1856426 3927055 4641065 7854110 9282130 10210343 20420686 51051715 102103430