Base | Representation |
---|---|
bin | 1110110101001… |
… | …00110010010000 |
3 | 22200002112020000 |
4 | 13122210302100 |
5 | 223322010203 |
6 | 20202250000 |
7 | 3040304262 |
oct | 732446220 |
9 | 280075200 |
10 | 124406928 |
11 | 64251848 |
12 | 357b6900 |
13 | 1ca0aa89 |
14 | 12745b32 |
15 | adc64a3 |
hex | 76a4c90 |
124406928 has 100 divisors (see below), whose sum is σ = 366397680. Its totient is φ = 40741056.
The previous prime is 124406917. The next prime is 124406939. The reversal of 124406928 is 829604421.
It is an interprime number because it is at equal distance from previous prime (124406917) and next prime (124406939).
It is a Harshad number since it is a multiple of its sum of digits (36).
It is a junction number, because it is equal to n+sod(n) for n = 124406892 and 124406901.
It is an unprimeable number.
It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 75651 + ... + 77277.
Almost surely, 2124406928 is an apocalyptic number.
124406928 is a gapful number since it is divisible by the number (18) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 124406928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (183198840).
124406928 is an abundant number, since it is smaller than the sum of its proper divisors (241990752).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
124406928 is a wasteful number, since it uses less digits than its factorization.
124406928 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1706 (or 1691 counting only the distinct ones).
The product of its (nonzero) digits is 27648, while the sum is 36.
The square root of 124406928 is about 11153.7853664126. The cubic root of 124406928 is about 499.2079834152.
The spelling of 124406928 in words is "one hundred twenty-four million, four hundred six thousand, nine hundred twenty-eight".
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