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214996520 = 2357175703
BaseRepresentation
bin11001101000010…
…01011000101000
3112222112221210002
430310021120220
5420014342040
633200042132
75220304004
oct1464113050
9488487702
10214996520
111003a6082
1260003348
133570819b
14207a7704
1513d1ca15
hexcd09628

214996520 has 32 divisors (see below), whose sum is σ = 490561920. Its totient is φ = 84786240.

The previous prime is 214996493. The next prime is 214996543. The reversal of 214996520 is 25699412.

It is a super-2 number, since 2×2149965202 = 92447007224220800, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35012 + ... + 40691.

It is an arithmetic number, because the mean of its divisors is an integer number (15330060).

Almost surely, 2214996520 is an apocalyptic number.

214996520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

214996520 is an abundant number, since it is smaller than the sum of its proper divisors (275565400).

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

214996520 is a wasteful number, since it uses less digits than its factorization.

214996520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75785 (or 75781 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 38.

The square root of 214996520 is about 14662.7596311199. The cubic root of 214996520 is about 599.0694092662.

The spelling of 214996520 in words is "two hundred fourteen million, nine hundred ninety-six thousand, five hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 71 142 284 355 568 710 1420 2840 75703 151406 302812 378515 605624 757030 1514060 3028120 5374913 10749826 21499652 26874565 42999304 53749130 107498260 214996520