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123541028 = 221321271439
BaseRepresentation
bin1110101110100…
…01011000100100
322121110112102122
413113101120210
5223111303103
620131525112
73030036632
oct727213044
9277415378
10123541028
1163810226
1235459798
131c796900
141259c352
15aca4b38
hex75d1624

123541028 has 36 divisors (see below), whose sum is σ = 236113920. Its totient is φ = 56530656.

The previous prime is 123541013. The next prime is 123541031. The reversal of 123541028 is 820145321.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a junction number, because it is equal to n+sod(n) for n = 123540988 and 123541006.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 85133 + ... + 86571.

It is an arithmetic number, because the mean of its divisors is an integer number (6558720).

Almost surely, 2123541028 is an apocalyptic number.

It is an amenable number.

123541028 is a deficient number, since it is larger than the sum of its proper divisors (112572892).

123541028 is a wasteful number, since it uses less digits than its factorization.

123541028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1596 (or 1581 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 26.

The square root of 123541028 is about 11114.9011691513. The cubic root of 123541028 is about 498.0470861862.

Adding to 123541028 its reverse (820145321), we get a palindrome (943686349).

The spelling of 123541028 in words is "one hundred twenty-three million, five hundred forty-one thousand, twenty-eight".

Divisors: 1 2 4 13 26 52 127 169 254 338 508 676 1439 1651 2878 3302 5756 6604 18707 21463 37414 42926 74828 85852 182753 243191 365506 486382 731012 972764 2375789 4751578 9503156 30885257 61770514 123541028