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103212430 = 2582312541
BaseRepresentation
bin1100010011011…
…10010110001110
321012012201211121
412021232112032
5202410244210
614124111154
72362201606
oct611562616
9235181747
10103212430
1153296032
122a6954ba
13184c9a59
14d9c9c06
1590db6da
hex626e58e

103212430 has 16 divisors (see below), whose sum is σ = 186022944. Its totient is φ = 41231520.

The previous prime is 103212419. The next prime is 103212433. The reversal of 103212430 is 34212301.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103212433) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1960 + ... + 14500.

It is an arithmetic number, because the mean of its divisors is an integer number (11626434).

Almost surely, 2103212430 is an apocalyptic number.

103212430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

103212430 is a deficient number, since it is larger than the sum of its proper divisors (82810514).

103212430 is a wasteful number, since it uses less digits than its factorization.

103212430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13371.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 103212430 is about 10159.3518494046. The cubic root of 103212430 is about 469.0768510322.

Adding to 103212430 its reverse (34212301), we get a palindrome (137424731).

The spelling of 103212430 in words is "one hundred three million, two hundred twelve thousand, four hundred thirty".

Divisors: 1 2 5 10 823 1646 4115 8230 12541 25082 62705 125410 10321243 20642486 51606215 103212430