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303142101 = 3101047367
BaseRepresentation
bin10010000100011…
…001010011010101
3210010102012210020
4102010121103111
51110101021401
650025215353
710340444133
oct2204312325
9703365706
10303142101
11146130169
1285631559
134aa5b032
142c390753
151b92ed36
hex121194d5

303142101 has 4 divisors (see below), whose sum is σ = 404189472. Its totient is φ = 202094732.

The previous prime is 303142031. The next prime is 303142109. The reversal of 303142101 is 101241303.

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: 101241303 = 333747101.

It is a cyclic number.

It is not a de Polignac number, because 303142101 - 27 = 303141973 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (303142109) 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, 50523681 + ... + 50523686.

It is an arithmetic number, because the mean of its divisors is an integer number (101047368).

Almost surely, 2303142101 is an apocalyptic number.

It is an amenable number.

303142101 is a deficient number, since it is larger than the sum of its proper divisors (101047371).

303142101 is a wasteful number, since it uses less digits than its factorization.

303142101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101047370.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 303142101 is about 17410.9764516526. The cubic root of 303142101 is about 671.7619776887.

Adding to 303142101 its reverse (101241303), we get a palindrome (404383404).

The spelling of 303142101 in words is "three hundred three million, one hundred forty-two thousand, one hundred one".

Divisors: 1 3 101047367 303142101