Search a number
-
+
214445420420 = 225711139250273
BaseRepresentation
bin1100011110110111110…
…0010110111110000100
3202111112001220002000112
43013231330112332010
512003141011423140
6242303113332152
721331104666230
oct3075574267604
9674461802015
10214445420420
1182a44938390
1235689407058
13172b6cb341a
14a5447c35c0
1558a173dc65
hex31edf16f84

214445420420 has 48 divisors (see below), whose sum is σ = 561457104768. Its totient is φ = 66840130560.

The previous prime is 214445420411. The next prime is 214445420429. The reversal of 214445420420 is 24024544412.

It is an interprime number because it is at equal distance from previous prime (214445420411) and next prime (214445420429).

It is a super-2 number, since 2×2144454204202 (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (214445420429) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69623597 + ... + 69626676.

It is an arithmetic number, because the mean of its divisors is an integer number (11697023016).

Almost surely, 2214445420420 is an apocalyptic number.

214445420420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

214445420420 is an abundant number, since it is smaller than the sum of its proper divisors (347011684348).

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

214445420420 is a wasteful number, since it uses less digits than its factorization.

214445420420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139250300 (or 139250298 counting only the distinct ones).

The product of its (nonzero) digits is 40960, while the sum is 32.

Adding to 214445420420 its reverse (24024544412), we get a palindrome (238469964832).

The spelling of 214445420420 in words is "two hundred fourteen billion, four hundred forty-five million, four hundred twenty thousand, four hundred twenty".

Divisors: 1 2 4 5 7 10 11 14 20 22 28 35 44 55 70 77 110 140 154 220 308 385 770 1540 139250273 278500546 557001092 696251365 974751911 1392502730 1531753003 1949503822 2785005460 3063506006 3899007644 4873759555 6127012012 7658765015 9747519110 10722271021 15317530030 19495038220 21444542042 30635060060 42889084084 53611355105 107222710210 214445420420