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6980219538 = 232322199187
BaseRepresentation
bin1101000000000110…
…11011001010010010
3200000110111220002120
412200003123022102
5103243414011123
63112350155110
7334655613165
oct64003331222
920013456076
106980219538
112a62174286
1214297b2a96
1387319b726
144a308badc
152acc0d2e3
hex1a00db292

6980219538 has 24 divisors (see below), whose sum is σ = 14593811568. Its totient is φ = 2225576232.

The previous prime is 6980219531. The next prime is 6980219581. The reversal of 6980219538 is 8359120896.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (6980219531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1096420 + ... + 1102767.

It is an arithmetic number, because the mean of its divisors is an integer number (608075482).

Almost surely, 26980219538 is an apocalyptic number.

6980219538 is an abundant number, since it is smaller than the sum of its proper divisors (7613592030).

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

6980219538 is a wasteful number, since it uses less digits than its factorization.

6980219538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2199238 (or 2199215 counting only the distinct ones).

The product of its (nonzero) digits is 933120, while the sum is 51.

The square root of 6980219538 is about 83547.7081552810. The cubic root of 6980219538 is about 1911.1276418259.

The spelling of 6980219538 in words is "six billion, nine hundred eighty million, two hundred nineteen thousand, five hundred thirty-eight".

Divisors: 1 2 3 6 23 46 69 138 529 1058 1587 3174 2199187 4398374 6597561 13195122 50581301 101162602 151743903 303487806 1163369923 2326739846 3490109769 6980219538