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31200110010 = 2335379304897
BaseRepresentation
bin11101000011101010…
…111110010110111010
32222112101111210211000
4131003222332112322
51002344212010020
622155542345430
72153111362566
oct350352762672
988471453730
1031200110010
1112260715493
126068a2b276
132c32bc7674
14171d9a66a6
15c29187090
hex743abe5ba

31200110010 has 64 divisors (see below), whose sum is σ = 83420092800. Its totient is φ = 8298049536.

The previous prime is 31200109987. The next prime is 31200110059. The reversal of 31200110010 is 1001100213.

It is a super-2 number, since 2×312001100102 (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 31200109974 and 31200110001.

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, 50119 + ... + 254778.

It is an arithmetic number, because the mean of its divisors is an integer number (1303438950).

Almost surely, 231200110010 is an apocalyptic number.

31200110010 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

31200110010 is an abundant number, since it is smaller than the sum of its proper divisors (52219982790).

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

31200110010 is a wasteful number, since it uses less digits than its factorization.

31200110010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305292 (or 305286 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 9.

Adding to 31200110010 its reverse (1001100213), we get a palindrome (32201210223).

The spelling of 31200110010 in words is "thirty-one billion, two hundred million, one hundred ten thousand, ten".

Divisors: 1 2 3 5 6 9 10 15 18 27 30 45 54 90 135 270 379 758 1137 1895 2274 3411 3790 5685 6822 10233 11370 17055 20466 34110 51165 102330 304897 609794 914691 1524485 1829382 2744073 3048970 4573455 5488146 8232219 9146910 13720365 16464438 27440730 41161095 82322190 115555963 231111926 346667889 577779815 693335778 1040003667 1155559630 1733339445 2080007334 3120011001 3466678890 5200018335 6240022002 10400036670 15600055005 31200110010