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1206620162020 = 225713662978111
BaseRepresentation
bin10001100011110000001…
…010101000011111100100
311021100111102201012000101
4101203300022220133210
5124232124230141040
62322151425353444
7153114113102650
oct21436012503744
94240442635011
101206620162020
114257a7696879
12175a26798884
1389a25cbb440
144258784ba60
15215c0ec509a
hex118f02a87e4

1206620162020 has 48 divisors (see below), whose sum is σ = 3118649038848. Its totient is φ = 381875391360.

The previous prime is 1206620161991. The next prime is 1206620162021. The reversal of 1206620162020 is 202610266021.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a self number, because there is not a number n which added to its sum of digits gives 1206620162020.

It is not an unprimeable number, because it can be changed into a prime (1206620162021) 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, 331487236 + ... + 331490875.

It is an arithmetic number, because the mean of its divisors is an integer number (64971854976).

Almost surely, 21206620162020 is an apocalyptic number.

1206620162020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1206620162020 is an abundant number, since it is smaller than the sum of its proper divisors (1912028876828).

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

1206620162020 is a wasteful number, since it uses less digits than its factorization.

1206620162020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 662978140 (or 662978138 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 28.

The spelling of 1206620162020 in words is "one trillion, two hundred six billion, six hundred twenty million, one hundred sixty-two thousand, twenty".

Divisors: 1 2 4 5 7 10 13 14 20 26 28 35 52 65 70 91 130 140 182 260 364 455 910 1820 662978111 1325956222 2651912444 3314890555 4640846777 6629781110 8618715443 9281693554 13259562220 17237430886 18563387108 23204233885 34474861772 43093577215 46408467770 60331008101 86187154430 92816935540 120662016202 172374308860 241324032404 301655040505 603310081010 1206620162020