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1311430342 = 21034363397
BaseRepresentation
bin100111000101010…
…1101011011000110
310101101200120020011
41032022231123012
510141211232332
6334044300434
744332655035
oct11612553306
93341616204
101311430342
116132a5032
1230724171a
1317b90a8b1
14c625871c
157a1ebe47
hex4e2ad6c6

1311430342 has 8 divisors (see below), whose sum is σ = 1967366736. Its totient is φ = 655641432.

The previous prime is 1311430313. The next prime is 1311430343. The reversal of 1311430342 is 2430341131.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1311430343) 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, 11013 + ... + 52384.

It is an arithmetic number, because the mean of its divisors is an integer number (245920842).

Almost surely, 21311430342 is an apocalyptic number.

1311430342 is a deficient number, since it is larger than the sum of its proper divisors (655936394).

1311430342 is a wasteful number, since it uses less digits than its factorization.

1311430342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73742.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 1311430342 is about 36213.6761735121. The cubic root of 1311430342 is about 1094.5822699960.

Adding to 1311430342 its reverse (2430341131), we get a palindrome (3741771473).

The spelling of 1311430342 in words is "one billion, three hundred eleven million, four hundred thirty thousand, three hundred forty-two".

Divisors: 1 2 10343 20686 63397 126794 655715171 1311430342