Search a number
-
+
214442520 = 23351787021
BaseRepresentation
bin11001100100000…
…10001000011000
3112221111210211120
430302002020120
5414344130040
633140125240
75212505565
oct1462021030
9487453746
10214442520
11100057926
125b996820
1335572c86
14206a186c
1513c5d7d0
hexcc82218

214442520 has 32 divisors (see below), whose sum is σ = 643327920. Its totient is φ = 57184640.

The previous prime is 214442519. The next prime is 214442533. The reversal of 214442520 is 25244412.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 893391 + ... + 893630.

Almost surely, 2214442520 is an apocalyptic number.

214442520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

214442520 is an abundant number, since it is smaller than the sum of its proper divisors (428885400).

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

214442520 is a wasteful number, since it uses less digits than its factorization.

214442520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1787035 (or 1787031 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 24.

The square root of 214442520 is about 14643.8560495520. The cubic root of 214442520 is about 598.5544087961.

Adding to 214442520 its reverse (25244412), we get a palindrome (239686932).

The spelling of 214442520 in words is "two hundred fourteen million, four hundred forty-two thousand, five hundred twenty".

Divisors: 1 2 3 4 5 6 8 10 12 15 20 24 30 40 60 120 1787021 3574042 5361063 7148084 8935105 10722126 14296168 17870210 21444252 26805315 35740420 42888504 53610630 71480840 107221260 214442520