| Base | Representation |
|---|---|
| bin | 1011111111110… |
| … | …10111000101110 |
| 3 | 21000101011100110 |
| 4 | 11333322320232 |
| 5 | 201231023400 |
| 6 | 13553040450 |
| 7 | 2331305634 |
| oct | 577727056 |
| 9 | 230334313 |
| 10 | 100642350 |
| 11 | 518a00a6 |
| 12 | 29856126 |
| 13 | 17b09cb3 |
| 14 | d51b354 |
| 15 | 8c7ee50 |
| hex | 5ffae2e |
100642350 has 48 divisors (see below), whose sum is σ = 252202608. Its totient is φ = 26557440.
The previous prime is 100642349. The next prime is 100642351. The reversal of 100642350 is 53246001.
It is a happy number.
It is an interprime number because it is at equal distance from previous prime (100642349) and next prime (100642351).
It is a super-2 number, since 2×1006423502 = 20257765227045000, which contains 22 as substring.
It is a Curzon number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (100642351) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11092 + ... + 18008.
It is an arithmetic number, because the mean of its divisors is an integer number (5254221).
Almost surely, 2100642350 is an apocalyptic number.
100642350 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is a practical number, because each smaller number is the sum of distinct divisors of 100642350, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (126101304).
100642350 is an abundant number, since it is smaller than the sum of its proper divisors (151560258).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
100642350 is a wasteful number, since it uses less digits than its factorization.
100642350 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 7029 (or 7024 counting only the distinct ones).
The product of its (nonzero) digits is 720, while the sum is 21.
The square root of 100642350 is about 10032.0660882991. The cubic root of 100642350 is about 465.1506044716.
Adding to 100642350 its reverse (53246001), we get a palindrome (153888351).
The spelling of 100642350 in words is "one hundred million, six hundred forty-two thousand, three hundred fifty".
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