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311425342 = 2181860291
BaseRepresentation
bin10010100011111…
…111100100111110
3210201000001020221
4102203333210332
51114211102332
650522531554
710501033414
oct2243774476
9721001227
10311425342
1114a878518
1288366bba
134c69b367
142d5092b4
151c519297
hex128ff93e

311425342 has 8 divisors (see below), whose sum is σ = 469719432. Its totient is φ = 154852200.

The previous prime is 311425339. The next prime is 311425391. The reversal of 311425342 is 243524113.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 429784 + ... + 430507.

It is an arithmetic number, because the mean of its divisors is an integer number (58714929).

Almost surely, 2311425342 is an apocalyptic number.

311425342 is a deficient number, since it is larger than the sum of its proper divisors (158294090).

311425342 is a wasteful number, since it uses less digits than its factorization.

311425342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 860474.

The product of its digits is 2880, while the sum is 25.

The square root of 311425342 is about 17647.2474340901. The cubic root of 311425342 is about 677.8256252544.

Adding to 311425342 its reverse (243524113), we get a palindrome (554949455).

The spelling of 311425342 in words is "three hundred eleven million, four hundred twenty-five thousand, three hundred forty-two".

Divisors: 1 2 181 362 860291 1720582 155712671 311425342