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2987401 = 23129887
BaseRepresentation
bin1011011001010110001001
312121202221111
423121112021
51231044101
6144010321
734251424
oct13312611
95552844
102987401
11176052a
1210009a1
138079c1
1457a9bb
153e0251
hex2d9589

2987401 has 4 divisors (see below), whose sum is σ = 3117312. Its totient is φ = 2857492.

The previous prime is 2987371. The next prime is 2987407. The reversal of 2987401 is 1047892.

2987401 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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.

It is a cyclic number.

It is not a de Polignac number, because 2987401 - 29 = 2986889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2987407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64921 + ... + 64966.

It is an arithmetic number, because the mean of its divisors is an integer number (779328).

22987401 is an apocalyptic number.

It is an amenable number.

2987401 is a deficient number, since it is larger than the sum of its proper divisors (129911).

2987401 is a wasteful number, since it uses less digits than its factorization.

2987401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129910.

The product of its (nonzero) digits is 4032, while the sum is 31.

The square root of 2987401 is about 1728.4099629428. The cubic root of 2987401 is about 144.0227748186.

The spelling of 2987401 in words is "two million, nine hundred eighty-seven thousand, four hundred one".

Divisors: 1 23 129887 2987401