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681297100710 = 235118343191899
BaseRepresentation
bin10011110101000000111…
…10001011111110100110
32102010112202200200011020
421322200132023332212
542130244024210320
61240552241152010
7100136114543232
oct11724036137646
92363482620136
10681297100710
11242a334a7636
12b005902b606
134c327723725
1424d913c75c2
1512ac7157940
hex9ea078bfa6

681297100710 has 32 divisors (see below), whose sum is σ = 1635135379200. Its totient is φ = 181676744928.

The previous prime is 681297100709. The next prime is 681297100711. The reversal of 681297100710 is 17001792186.

It is an interprime number because it is at equal distance from previous prime (681297100709) and next prime (681297100711).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (681297100711) 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, 3454341 + ... + 3646239.

It is an arithmetic number, because the mean of its divisors is an integer number (51097980600).

Almost surely, 2681297100710 is an apocalyptic number.

681297100710 is an abundant number, since it is smaller than the sum of its proper divisors (953838278490).

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

681297100710 is a wasteful number, since it uses less digits than its factorization.

681297100710 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 310252.

The product of its (nonzero) digits is 42336, while the sum is 42.

Adding to 681297100710 its reverse (17001792186), we get a palindrome (698298892896).

The spelling of 681297100710 in words is "six hundred eighty-one billion, two hundred ninety-seven million, one hundred thousand, seven hundred ten".

Divisors: 1 2 3 5 6 10 15 30 118343 191899 236686 355029 383798 575697 591715 710058 959495 1151394 1183430 1775145 1918990 2878485 3550290 5756970 22709903357 45419806714 68129710071 113549516785 136259420142 227099033570 340648550355 681297100710