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3990002123 = 71202927697
BaseRepresentation
bin1110110111010010…
…1001100111001011
3101022001220002221102
43231310221213023
531132420031443
61455531332015
7200606313152
oct35564514713
911261802842
103990002123
111768285718
129342b100b
134b7830b03
1429bcb0599
1518544ccb8
hexedd299cb

3990002123 has 8 divisors (see below), whose sum is σ = 4048339680. Its totient is φ = 3931724160.

The previous prime is 3990002117. The next prime is 3990002129. The reversal of 3990002123 is 3212000993.

It is an interprime number because it is at equal distance from previous prime (3990002117) and next prime (3990002129).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3990002123 - 28 = 3990001867 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3990002129) 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 7 ways as a sum of consecutive naturals, for example, 130211 + ... + 157907.

It is an arithmetic number, because the mean of its divisors is an integer number (506042460).

Almost surely, 23990002123 is an apocalyptic number.

3990002123 is a deficient number, since it is larger than the sum of its proper divisors (58337557).

3990002123 is a wasteful number, since it uses less digits than its factorization.

3990002123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29797.

The product of its (nonzero) digits is 2916, while the sum is 29.

The square root of 3990002123 is about 63166.4635942206. The cubic root of 3990002123 is about 1586.0773951695.

The spelling of 3990002123 in words is "three billion, nine hundred ninety million, two thousand, one hundred twenty-three".

Divisors: 1 71 2029 27697 144059 1966487 56197213 3990002123