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1440103214 = 2111927112713
BaseRepresentation
bin101010111010110…
…0011101100101110
310201100210211020002
41111311203230232
510422131300324
6354522224302
750454450434
oct12565435456
93640724202
101440103214
1167999a950
12342355092
1319c4802a4
14d9390d54
15866673ae
hex55d63b2e

1440103214 has 32 divisors (see below), whose sum is σ = 2489909760. Its totient is φ = 617803200.

The previous prime is 1440103183. The next prime is 1440103219. The reversal of 1440103214 is 4123010441.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1440103219) 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, 106922 + ... + 119634.

It is an arithmetic number, because the mean of its divisors is an integer number (77809680).

Almost surely, 21440103214 is an apocalyptic number.

1440103214 is a deficient number, since it is larger than the sum of its proper divisors (1049806546).

1440103214 is a wasteful number, since it uses less digits than its factorization.

1440103214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13016.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 1440103214 is about 37948.6918615122. The cubic root of 1440103214 is about 1129.2702140384.

Adding to 1440103214 its reverse (4123010441), we get a palindrome (5563113655).

The spelling of 1440103214 in words is "one billion, four hundred forty million, one hundred three thousand, two hundred fourteen".

Divisors: 1 2 11 19 22 38 209 271 418 542 2981 5149 5962 10298 12713 25426 56639 113278 139843 241547 279686 483094 2657017 3445223 5314034 6890446 37897453 65459237 75794906 130918474 720051607 1440103214