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214919149390 = 25116592964811
BaseRepresentation
bin1100100000101000101…
…1011111011101001110
3202112202002021222222221
43020022023133131032
512010123300240030
6242422115125554
721345616425241
oct3101213373516
9675662258887
10214919149390
1183168290a30
123579bba38ba
131736119a91a
14a58b69b258
1558cd117e7a
hex320a2df74e

214919149390 has 32 divisors (see below), whose sum is σ = 422663598720. Its totient is φ = 78033799200.

The previous prime is 214919149369. The next prime is 214919149391. The reversal of 214919149390 is 93941919412.

It is a super-2 number, since 2×2149191493902 (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (214919149391) 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, 1409916 + ... + 1554895.

It is an arithmetic number, because the mean of its divisors is an integer number (13208237460).

Almost surely, 2214919149390 is an apocalyptic number.

214919149390 is a deficient number, since it is larger than the sum of its proper divisors (207744449330).

214919149390 is a wasteful number, since it uses less digits than its factorization.

214919149390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2965488.

The product of its (nonzero) digits is 629856, while the sum is 52.

The spelling of 214919149390 in words is "two hundred fourteen billion, nine hundred nineteen million, one hundred forty-nine thousand, three hundred ninety".

Divisors: 1 2 5 10 11 22 55 110 659 1318 3295 6590 7249 14498 36245 72490 2964811 5929622 14824055 29648110 32612921 65225842 163064605 326129210 1953810449 3907620898 9769052245 19538104490 21491914939 42983829878 107459574695 214919149390