Base | Representation |
---|---|
bin | 10110100110100… |
… | …100110111010100 |
3 | 222102112221000000 |
4 | 112212210313110 |
5 | 1234034224340 |
6 | 101343451300 |
7 | 12253146033 |
oct | 2646446724 |
9 | 872487000 |
10 | 379211220 |
11 | 185067003 |
12 | a6bb6b30 |
13 | 6074314b |
14 | 3851271a |
15 | 23458d30 |
hex | 169a4dd4 |
379211220 has 168 divisors, whose sum is σ = 1233953280. Its totient is φ = 97744320.
The previous prime is 379211219. The next prime is 379211233. The reversal of 379211220 is 22112973.
It is a super-2 number, since 2×3792112202 = 287602298747776800, which contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (27).
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 451561 + ... + 452399.
It is an arithmetic number, because the mean of its divisors is an integer number (7344960).
Almost surely, 2379211220 is an apocalyptic number.
379211220 is a gapful number since it is divisible by the number (30) 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 379211220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (616976640).
379211220 is an abundant number, since it is smaller than the sum of its proper divisors (854742060).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
379211220 is a wasteful number, since it uses less digits than its factorization.
379211220 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 897 (or 880 counting only the distinct ones).
The product of its (nonzero) digits is 1512, while the sum is 27.
The square root of 379211220 is about 19473.3463996304. The cubic root of 379211220 is about 723.8141342936.
The spelling of 379211220 in words is "three hundred seventy-nine million, two hundred eleven thousand, two hundred twenty".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.072 sec. • engine limits •