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4128157013 = 4703877771
BaseRepresentation
bin1111011000001110…
…1010110101010101
3101122200212002211012
43312003222311111
531423302011023
61521344422005
7204204520121
oct36603526525
911580762735
104128157013
111829267512
12972617905
1350a343376
142b2394581
1519263c978
hexf60ead55

4128157013 has 4 divisors (see below), whose sum is σ = 4129039488. Its totient is φ = 4127274540.

The previous prime is 4128156983. The next prime is 4128157051. The reversal of 4128157013 is 3107518214.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3107518214 = 21553759107.

It is a cyclic number.

It is not a de Polignac number, because 4128157013 - 214 = 4128140629 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4128157213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 434183 + ... + 443588.

It is an arithmetic number, because the mean of its divisors is an integer number (1032259872).

Almost surely, 24128157013 is an apocalyptic number.

It is an amenable number.

4128157013 is a deficient number, since it is larger than the sum of its proper divisors (882475).

4128157013 is an equidigital number, since it uses as much as digits as its factorization.

4128157013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 882474.

The product of its (nonzero) digits is 6720, while the sum is 32.

The square root of 4128157013 is about 64250.7355055178. The cubic root of 4128157013 is about 1604.1762011737.

The spelling of 4128157013 in words is "four billion, one hundred twenty-eight million, one hundred fifty-seven thousand, thirteen".

Divisors: 1 4703 877771 4128157013