Search a number
-
+
401420430 = 23257361099
BaseRepresentation
bin10111111011010…
…011000010001110
31000222100021022100
4113323103002032
51310230423210
6103455455530
712643005645
oct2773230216
91028307270
10401420430
11196656124
12b25275a6
136521aca8
143b45435c
15253945c0
hex17ed308e

401420430 has 48 divisors (see below), whose sum is σ = 1058007600. Its totient is φ = 105577344.

The previous prime is 401420413. The next prime is 401420441. The reversal of 401420430 is 34024104.

It is a super-2 number, since 2×4014204302 = 322276723242769800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23980 + ... + 37119.

It is an arithmetic number, because the mean of its divisors is an integer number (22041825).

Almost surely, 2401420430 is an apocalyptic number.

401420430 is an abundant number, since it is smaller than the sum of its proper divisors (656587170).

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

401420430 is a wasteful number, since it uses less digits than its factorization.

401420430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61185 (or 61182 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 401420430 is about 20035.4792805164. The cubic root of 401420430 is about 737.6774208784.

Adding to 401420430 its reverse (34024104), we get a palindrome (435444534).

The spelling of 401420430 in words is "four hundred one million, four hundred twenty thousand, four hundred thirty".

Divisors: 1 2 3 5 6 9 10 15 18 30 45 73 90 146 219 365 438 657 730 1095 1314 2190 3285 6570 61099 122198 183297 305495 366594 549891 610990 916485 1099782 1832970 2749455 4460227 5498910 8920454 13380681 22301135 26761362 40142043 44602270 66903405 80284086 133806810 200710215 401420430