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214189670 = 25371992909
BaseRepresentation
bin11001100010001…
…00011001100110
3112221000221222202
430301010121212
5414313032140
633130454502
75210403452
oct1461043146
9487027882
10214189670
11aa9a4962
125b894432
13354b4b66
1420637662
1513c0d915
hexcc44666

214189670 has 32 divisors (see below), whose sum is σ = 398088000. Its totient is φ = 82912896.

The previous prime is 214189643. The next prime is 214189673. The reversal of 214189670 is 76981412.

It is an alternating number because its digits alternate between even and odd.

It is a zygodrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (214189673) 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, 72176 + ... + 75084.

It is an arithmetic number, because the mean of its divisors is an integer number (12440250).

Almost surely, 2214189670 is an apocalyptic number.

214189670 is a deficient number, since it is larger than the sum of its proper divisors (183898330).

214189670 is a wasteful number, since it uses less digits than its factorization.

214189670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3152.

The product of its (nonzero) digits is 24192, while the sum is 38.

The square root of 214189670 is about 14635.2201896658. The cubic root of 214189670 is about 598.3190636714.

The spelling of 214189670 in words is "two hundred fourteen million, one hundred eighty-nine thousand, six hundred seventy".

Divisors: 1 2 5 10 37 74 185 199 370 398 995 1990 2909 5818 7363 14545 14726 29090 36815 73630 107633 215266 538165 578891 1076330 1157782 2894455 5788910 21418967 42837934 107094835 214189670