Search a number
-
+
1311226230630 = 235257557305329
BaseRepresentation
bin10011000101001011001…
…011000111011101100110
311122100111121111001112210
4103011023023013131212
5132440342403340010
62442211412424250
7163506260030631
oct23051313073546
94570447431483
101311226230630
114660a7029448
1219215b018086
1396856b61464
144766c508c18
15241947a0b20
hex1314b2c7766

1311226230630 has 64 divisors (see below), whose sum is σ = 3164870024640. Its totient is φ = 347673329664.

The previous prime is 1311226230569. The next prime is 1311226230673. The reversal of 1311226230630 is 360326221131.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4141806 + ... + 4447134.

It is an arithmetic number, because the mean of its divisors is an integer number (49451094135).

Almost surely, 21311226230630 is an apocalyptic number.

1311226230630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1311226230630 is an abundant number, since it is smaller than the sum of its proper divisors (1853643794010).

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

1311226230630 is a wasteful number, since it uses less digits than its factorization.

1311226230630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 306153.

The product of its (nonzero) digits is 7776, while the sum is 30.

The spelling of 1311226230630 in words is "one trillion, three hundred eleven billion, two hundred twenty-six million, two hundred thirty thousand, six hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 257 514 557 771 1114 1285 1542 1671 2570 2785 3342 3855 5570 7710 8355 16710 143149 286298 305329 429447 610658 715745 858894 915987 1431490 1526645 1831974 2147235 3053290 4294470 4579935 9159870 78469553 156939106 170068253 235408659 340136506 392347765 470817318 510204759 784695530 850341265 1020409518 1177043295 1700682530 2354086590 2551023795 5102047590 43707541021 87415082042 131122623063 218537705105 262245246126 437075410210 655613115315 1311226230630