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1976131107 = 3373190041
BaseRepresentation
bin111010111001001…
…0101111000100011
312002201102212021000
41311302111320203
513021342143412
6524031203043
766653560116
oct16562257043
95081385230
101976131107
11924524605
12471976483
1325653ac62
1414a64457d
15b874a4dc
hex75c95e23

1976131107 has 8 divisors (see below), whose sum is σ = 2927601680. Its totient is φ = 1317420720.

The previous prime is 1976131067. The next prime is 1976131123. The reversal of 1976131107 is 7011316791.

It is not a de Polignac number, because 1976131107 - 27 = 1976130979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1976131127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36594994 + ... + 36595047.

It is an arithmetic number, because the mean of its divisors is an integer number (365950210).

Almost surely, 21976131107 is an apocalyptic number.

1976131107 is a deficient number, since it is larger than the sum of its proper divisors (951470573).

1976131107 is an equidigital number, since it uses as much as digits as its factorization.

1976131107 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73190050 (or 73190044 counting only the distinct ones).

The product of its (nonzero) digits is 7938, while the sum is 36.

The square root of 1976131107 is about 44453.6962130260. The cubic root of 1976131107 is about 1254.8888240855. Note that the first 4 decimals are identical.

Adding to 1976131107 its reverse (7011316791), we get a palindrome (8987447898).

The spelling of 1976131107 in words is "one billion, nine hundred seventy-six million, one hundred thirty-one thousand, one hundred seven".

Divisors: 1 3 9 27 73190041 219570123 658710369 1976131107