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103128466 = 2719292461
BaseRepresentation
bin1100010010110…
…01110110010010
321012001110122211
412021121312102
5202400102331
614122222334
72361402040
oct611316622
9235043584
10103128466
1153238a41
122a6549aa
131849a77c
14d9a7390
1590c18b1
hex6259d92

103128466 has 48 divisors (see below), whose sum is σ = 193152960. Its totient is φ = 40340160.

The previous prime is 103128451. The next prime is 103128469. The reversal of 103128466 is 664821301.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (103128469) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 223476 + ... + 223936.

It is an arithmetic number, because the mean of its divisors is an integer number (4024020).

Almost surely, 2103128466 is an apocalyptic number.

103128466 is a deficient number, since it is larger than the sum of its proper divisors (90024494).

103128466 is a wasteful number, since it uses less digits than its factorization.

103128466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 547 (or 518 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 103128466 is about 10155.2186584042. The cubic root of 103128466 is about 468.9496174755.

Adding to 103128466 its reverse (664821301), we get a palindrome (767949767).

The spelling of 103128466 in words is "one hundred three million, one hundred twenty-eight thousand, four hundred sixty-six".

Divisors: 1 2 7 14 19 29 38 58 133 203 266 406 461 551 841 922 1102 1682 3227 3857 5887 6454 7714 8759 11774 13369 15979 17518 26738 31958 61313 93583 111853 122626 187166 223706 254011 387701 508022 775402 1778077 2713907 3556154 5427814 7366319 14732638 51564233 103128466