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303401420 = 225717912107
BaseRepresentation
bin10010000101011…
…000100111001100
3210010220101111122
4102011120213030
51110132321140
650034540112
710342604150
oct2205304714
9703811448
10303401420
11146297a83
1285737638
134ab1c08a
142c41b060
151b981ab5
hex121589cc

303401420 has 48 divisors (see below), whose sum is σ = 732291840. Its totient is φ = 103433664.

The previous prime is 303401387. The next prime is 303401453. The reversal of 303401420 is 24104303.

It is an interprime number because it is at equal distance from previous prime (303401387) and next prime (303401453).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19007 + ... + 31113.

It is an arithmetic number, because the mean of its divisors is an integer number (15256080).

Almost surely, 2303401420 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 303401420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (366145920).

303401420 is an abundant number, since it is smaller than the sum of its proper divisors (428890420).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

303401420 is a wasteful number, since it uses less digits than its factorization.

303401420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12302 (or 12300 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 303401420 is about 17418.4218573325. The cubic root of 303401420 is about 671.9534731345.

Adding to 303401420 its reverse (24104303), we get a palindrome (327505723).

The spelling of 303401420 in words is "three hundred three million, four hundred one thousand, four hundred twenty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 179 358 716 895 1253 1790 2506 3580 5012 6265 12107 12530 24214 25060 48428 60535 84749 121070 169498 242140 338996 423745 847490 1694980 2167153 4334306 8668612 10835765 15170071 21671530 30340142 43343060 60680284 75850355 151700710 303401420