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1401311230 = 251189143137
BaseRepresentation
bin101001110000110…
…0100111111111110
310121122210222121221
41103201210333332
510332213424410
6351014543554
746503643324
oct12341447776
93548728557
101401311230
1165a004960
12331367bba
1319441a557
14d4173d14
15830534da
hex53864ffe

1401311230 has 32 divisors (see below), whose sum is σ = 2782602720. Its totient is φ = 503838720.

The previous prime is 1401311209. The next prime is 1401311239. The reversal of 1401311230 is 321131041.

It is a super-2 number, since 2×14013112302 = 3927346326648225800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1401311239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 61779 + ... + 81358.

It is an arithmetic number, because the mean of its divisors is an integer number (86956335).

Almost surely, 21401311230 is an apocalyptic number.

1401311230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1401311230 is a deficient number, since it is larger than the sum of its proper divisors (1381291490).

1401311230 is a wasteful number, since it uses less digits than its factorization.

1401311230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143244.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 1401311230 is about 37434.0918148150. The cubic root of 1401311230 is about 1119.0380851266.

Adding to 1401311230 its reverse (321131041), we get a palindrome (1722442271).

The spelling of 1401311230 in words is "one billion, four hundred one million, three hundred eleven thousand, two hundred thirty".

Divisors: 1 2 5 10 11 22 55 89 110 178 445 890 979 1958 4895 9790 143137 286274 715685 1431370 1574507 3149014 7872535 12739193 15745070 25478386 63695965 127391930 140131123 280262246 700655615 1401311230