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216150680 = 23543125669
BaseRepresentation
bin11001110001000…
…11001010011000
3120001201120222202
430320203022120
5420313310210
633240505332
75233151624
oct1470431230
9501646882
10216150680
11101014229
126047b248
1335a20615
14209c8184
1513e999a5
hexce23298

216150680 has 32 divisors (see below), whose sum is σ = 497653200. Its totient is φ = 84448896.

The previous prime is 216150677. The next prime is 216150709. The reversal of 216150680 is 86051612.

It is a happy number.

It is a super-2 number, since 2×2161506802 = 93442232928924800, which contains 22 as substring.

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, 61115 + ... + 64554.

Almost surely, 2216150680 is an apocalyptic number.

216150680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

216150680 is an abundant number, since it is smaller than the sum of its proper divisors (281502520).

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

216150680 is a wasteful number, since it uses less digits than its factorization.

216150680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125723 (or 125719 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 29.

The square root of 216150680 is about 14702.0638007050. The cubic root of 216150680 is about 600.1394860887.

The spelling of 216150680 in words is "two hundred sixteen million, one hundred fifty thousand, six hundred eighty".

Divisors: 1 2 4 5 8 10 20 40 43 86 172 215 344 430 860 1720 125669 251338 502676 628345 1005352 1256690 2513380 5026760 5403767 10807534 21615068 27018835 43230136 54037670 108075340 216150680