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2065720484 = 22516430121
BaseRepresentation
bin111101100100000…
…0110010010100100
312022222000110210002
41323020012102210
513212311023414
6540551320432
7102122222462
oct17310062244
95288013702
102065720484
11970055413
12497980118
1326bc78019
141584c5832
15c15454de
hex7b2064a4

2065720484 has 6 divisors (see below), whose sum is σ = 3615010854. Its totient is φ = 1032860240.

The previous prime is 2065720469. The next prime is 2065720537. The reversal of 2065720484 is 4840275602.

It can be written as a sum of positive squares in only one way, i.e., 2017806400 + 47914084 = 44920^2 + 6922^2 .

It is a super-2 number, since 2×20657204842 = 8534402236034388512, which contains 22 as substring.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 258215057 + ... + 258215064.

It is an arithmetic number, because the mean of its divisors is an integer number (602501809).

Almost surely, 22065720484 is an apocalyptic number.

It is an amenable number.

2065720484 is a deficient number, since it is larger than the sum of its proper divisors (1549290370).

2065720484 is a wasteful number, since it uses less digits than its factorization.

2065720484 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 516430125 (or 516430123 counting only the distinct ones).

The product of its (nonzero) digits is 107520, while the sum is 38.

The square root of 2065720484 is about 45450.1978433538. The cubic root of 2065720484 is about 1273.5730253953.

The spelling of 2065720484 in words is "two billion, sixty-five million, seven hundred twenty thousand, four hundred eighty-four".

Divisors: 1 2 4 516430121 1032860242 2065720484