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31342001 = 1914911071
BaseRepresentation
bin111011110001…
…1110110110001
32011222100010212
41313203312301
531010421001
63035433505
7530255045
oct167436661
964870125
1031342001
1116767789
12a5b5895
136654a82
14423c025
152b417bb
hex1de3db1

31342001 has 8 divisors (see below), whose sum is σ = 33216000. Its totient is φ = 29490480.

The previous prime is 31341991. The next prime is 31342009. The reversal of 31342001 is 10024313.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-31342001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31342009) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2705 + ... + 8366.

It is an arithmetic number, because the mean of its divisors is an integer number (4152000).

Almost surely, 231342001 is an apocalyptic number.

It is an amenable number.

31342001 is a deficient number, since it is larger than the sum of its proper divisors (1873999).

31342001 is a wasteful number, since it uses less digits than its factorization.

31342001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11239.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 31342001 is about 5598.3927157712. The cubic root of 31342001 is about 315.2890636222.

Adding to 31342001 its reverse (10024313), we get a palindrome (41366314).

The spelling of 31342001 in words is "thirty-one million, three hundred forty-two thousand, one".

Divisors: 1 19 149 2831 11071 210349 1649579 31342001