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124891401 = 3172448851
BaseRepresentation
bin1110111000110…
…11000100001001
322201000010210110
413130123010021
5223433011101
620220504533
73044362605
oct734330411
9281003713
10124891401
1164552838
12359ab149
131cb4a44b
1412830505
15ae6ecd6
hex771b109

124891401 has 8 divisors (see below), whose sum is σ = 176317344. Its totient is φ = 78363200.

The previous prime is 124891397. The next prime is 124891409. The reversal of 124891401 is 104198421.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 124891401 - 22 = 124891397 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (124891409) 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 7 ways as a sum of consecutive naturals, for example, 1224375 + ... + 1224476.

It is an arithmetic number, because the mean of its divisors is an integer number (22039668).

Almost surely, 2124891401 is an apocalyptic number.

It is an amenable number.

124891401 is a deficient number, since it is larger than the sum of its proper divisors (51425943).

124891401 is a wasteful number, since it uses less digits than its factorization.

124891401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2448871.

The product of its (nonzero) digits is 2304, while the sum is 30.

The square root of 124891401 is about 11175.4821372503. The cubic root of 124891401 is about 499.8551593798.

The spelling of 124891401 in words is "one hundred twenty-four million, eight hundred ninety-one thousand, four hundred one".

Divisors: 1 3 17 51 2448851 7346553 41630467 124891401