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2681219237720 = 235358318707921
BaseRepresentation
bin100111000001000101000…
…111101100011101011000
3100111022200210000200011212
4213001011013230131120
5322412114111101340
65411422441242252
7364466053325432
oct47010507543530
910438623020155
102681219237720
1194410a3a6841
1237377aa93388
13165ab7ac530a
1493ab37a9652
1549b283a4a65
hex270451ec758

2681219237720 has 32 divisors (see below), whose sum is σ = 6034427320320. Its totient is φ = 1072188311040.

The previous prime is 2681219237701. The next prime is 2681219237729. The reversal of 2681219237720 is 277329121862.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2681219237729) 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 7 ways as a sum of consecutive naturals, for example, 9210641 + ... + 9497280.

It is an arithmetic number, because the mean of its divisors is an integer number (188575853760).

Almost surely, 22681219237720 is an apocalyptic number.

2681219237720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2681219237720 is an abundant number, since it is smaller than the sum of its proper divisors (3353208082600).

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

2681219237720 is a wasteful number, since it uses less digits than its factorization.

2681219237720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18711515 (or 18711511 counting only the distinct ones).

The product of its (nonzero) digits is 1016064, while the sum is 50.

The spelling of 2681219237720 in words is "two trillion, six hundred eighty-one billion, two hundred nineteen million, two hundred thirty-seven thousand, seven hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 3583 7166 14332 17915 28664 35830 71660 143320 18707921 37415842 74831684 93539605 149663368 187079210 374158420 748316840 67030480943 134060961886 268121923772 335152404715 536243847544 670304809430 1340609618860 2681219237720