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1976713020 = 2232510981739
BaseRepresentation
bin111010111010010…
…0011111100111100
312002202112102111100
41311310203330330
513022014304040
6524051453100
766661532502
oct16564437474
95082472440
101976713020
11924891827
12471bb7190
132566b2a99
1414a756672
15b8812b30
hex75d23f3c

1976713020 has 36 divisors (see below), whose sum is σ = 5996030040. Its totient is φ = 527123424.

The previous prime is 1976713009. The next prime is 1976713043. The reversal of 1976713020 is 203176791.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 5490690 + ... + 5491049.

It is an arithmetic number, because the mean of its divisors is an integer number (166556390).

Almost surely, 21976713020 is an apocalyptic number.

1976713020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1976713020 is an abundant number, since it is smaller than the sum of its proper divisors (4019317020).

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

1976713020 is a wasteful number, since it uses less digits than its factorization.

1976713020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10981754 (or 10981749 counting only the distinct ones).

The product of its (nonzero) digits is 15876, while the sum is 36.

The square root of 1976713020 is about 44460.2408900357. The cubic root of 1976713020 is about 1255.0119880550.

The spelling of 1976713020 in words is "one billion, nine hundred seventy-six million, seven hundred thirteen thousand, twenty".

Divisors: 1 2 3 4 5 6 9 10 12 15 18 20 30 36 45 60 90 180 10981739 21963478 32945217 43926956 54908695 65890434 98835651 109817390 131780868 164726085 197671302 219634780 329452170 395342604 494178255 658904340 988356510 1976713020