| Base | Representation |
|---|---|
| bin | 10111111010100… |
| … | …010110111010000 |
| 3 | 1000221222020122120 |
| 4 | 113322202313100 |
| 5 | 1310203114440 |
| 6 | 103451334240 |
| 7 | 12641224464 |
| oct | 2772426720 |
| 9 | 1027866576 |
| 10 | 401223120 |
| 11 | 196530961 |
| 12 | b2451380 |
| 13 | 6517c23c |
| 14 | 3b4024a4 |
| 15 | 25355dd0 |
| hex | 17ea2dd0 |
401223120 has 160 divisors (see below), whose sum is σ = 1362769920. Its totient is φ = 97198080.
The previous prime is 401223113. The next prime is 401223127. The reversal of 401223120 is 21322104.
It is an interprime number because it is at equal distance from previous prime (401223113) and next prime (401223127).
It is a Harshad number since it is a multiple of its sum of digits (15).
It is a self number, because there is not a number n which added to its sum of digits gives 401223120.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (401223127) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 116625 + ... + 120015.
It is an arithmetic number, because the mean of its divisors is an integer number (8517312).
Almost surely, 2401223120 is an apocalyptic number.
401223120 is a gapful number since it is divisible by the number (40) 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 401223120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (681384960).
401223120 is an abundant number, since it is smaller than the sum of its proper divisors (961546800).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
401223120 is a wasteful number, since it uses less digits than its factorization.
401223120 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3453 (or 3447 counting only the distinct ones).
The product of its (nonzero) digits is 96, while the sum is 15.
The square root of 401223120 is about 20030.5546603183. The cubic root of 401223120 is about 737.5565376555.
Adding to 401223120 its reverse (21322104), we get a palindrome (422545224).
The spelling of 401223120 in words is "four hundred one million, two hundred twenty-three thousand, one hundred twenty".
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