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4000757929 = 7281648121
BaseRepresentation
bin1110111001110110…
…1011100010101001
3101022211010120010121
43232131223202221
531143143223204
61500554043241
7201066611200
oct35635534251
911284116117
104000757929
111773361713
12937a19521
134b9b286ac
1429d4b0237
15186374b54
hexee76b8a9

4000757929 has 6 divisors (see below), whose sum is σ = 4653942954. Its totient is φ = 3429221040.

The previous prime is 4000757911. The next prime is 4000757939. The reversal of 4000757929 is 9297570004.

It can be written as a sum of positive squares in only one way, i.e., 3915380329 + 85377600 = 62573^2 + 9240^2 .

It is not a de Polignac number, because 4000757929 - 25 = 4000757897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4000757939) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 40824012 + ... + 40824109.

It is an arithmetic number, because the mean of its divisors is an integer number (775657159).

Almost surely, 24000757929 is an apocalyptic number.

4000757929 is a gapful number since it is divisible by the number (49) formed by its first and last digit.

It is an amenable number.

4000757929 is a deficient number, since it is larger than the sum of its proper divisors (653185025).

4000757929 is an equidigital number, since it uses as much as digits as its factorization.

4000757929 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81648135 (or 81648128 counting only the distinct ones).

The product of its (nonzero) digits is 158760, while the sum is 43.

The square root of 4000757929 is about 63251.5448744139. The cubic root of 4000757929 is about 1587.5013070773.

The spelling of 4000757929 in words is "four billion, seven hundred fifty-seven thousand, nine hundred twenty-nine".

Divisors: 1 7 49 81648121 571536847 4000757929