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10214312440 = 235255357811
BaseRepresentation
bin10011000001101001…
…00000100111111000
3222100212000211112011
421200310200213320
5131404330444230
64405320055304
7511056136363
oct114064404770
928325024464
1010214312440
114371793132
121b90904534
13c6a216177
146cc7cd0da
153ebae2e2a
hex260d209f8

10214312440 has 16 divisors (see below), whose sum is σ = 22982203080. Its totient is φ = 4085724960.

The previous prime is 10214312413. The next prime is 10214312447. The reversal of 10214312440 is 4421341201.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10214312447) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 127678866 + ... + 127678945.

Almost surely, 210214312440 is an apocalyptic number.

10214312440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10214312440 is an abundant number, since it is smaller than the sum of its proper divisors (12767890640).

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

10214312440 is a wasteful number, since it uses less digits than its factorization.

10214312440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255357822 (or 255357818 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 10214312440 its reverse (4421341201), we get a palindrome (14635653641).

The spelling of 10214312440 in words is "ten billion, two hundred fourteen million, three hundred twelve thousand, four hundred forty".

Divisors: 1 2 4 5 8 10 20 40 255357811 510715622 1021431244 1276789055 2042862488 2553578110 5107156220 10214312440