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214154340231 = 31341827161947
BaseRepresentation
bin1100011101110010010…
…1111110011110000111
3202110202210011200001210
43013130211332132013
512002042002341411
6242214154422503
721320641600026
oct3073445763607
9673683150053
10214154340231
11829055a6547
1235607a31a33
131726b8b9620
14a517c928bd
155885de2ca6
hex31dc97e787

214154340231 has 32 divisors (see below), whose sum is σ = 315386604288. Its totient is φ = 128416700160.

The previous prime is 214154340221. The next prime is 214154340251. The reversal of 214154340231 is 132043451412.

It is not a de Polignac number, because 214154340231 - 213 = 214154332039 is a prime.

It is a super-2 number, since 2×2141543402312 (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 (214154340221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1241400 + ... + 1403346.

It is an arithmetic number, because the mean of its divisors is an integer number (9855831384).

Almost surely, 2214154340231 is an apocalyptic number.

214154340231 is a deficient number, since it is larger than the sum of its proper divisors (101232264057).

214154340231 is a wasteful number, since it uses less digits than its factorization.

214154340231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162831.

The product of its (nonzero) digits is 11520, while the sum is 30.

Adding to 214154340231 its reverse (132043451412), we get a palindrome (346197791643).

The spelling of 214154340231 in words is "two hundred fourteen billion, one hundred fifty-four million, three hundred forty thousand, two hundred thirty-one".

Divisors: 1 3 13 39 41 123 533 827 1599 2481 10751 32253 33907 101721 161947 440791 485841 1322373 2105311 6315933 6639827 19919481 86317751 133930169 258953253 401790507 1741092197 5223276591 5491136929 16473410787 71384780077 214154340231