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331041421 = 4174310867
BaseRepresentation
bin10011101110110…
…100101010001101
3212001220122110101
4103232310222031
51134221311141
652503211101
711126543224
oct2356645215
9761818411
10331041421
1115a956357
1292a46a91
1353778ac9
1431d73cbb
151e0e1531
hex13bb4a8d

331041421 has 8 divisors (see below), whose sum is σ = 339603264. Its totient is φ = 322502880.

The previous prime is 331041419. The next prime is 331041481. The reversal of 331041421 is 124140133.

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

It is a cyclic number.

It is not a de Polignac number, because 331041421 - 21 = 331041419 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331041481) 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, 25030 + ... + 35896.

It is an arithmetic number, because the mean of its divisors is an integer number (42450408).

Almost surely, 2331041421 is an apocalyptic number.

It is an amenable number.

331041421 is a deficient number, since it is larger than the sum of its proper divisors (8561843).

331041421 is a wasteful number, since it uses less digits than its factorization.

331041421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11651.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 331041421 is about 18194.5437150812. The cubic root of 331041421 is about 691.7684949868.

Adding to 331041421 its reverse (124140133), we get a palindrome (455181554).

The spelling of 331041421 in words is "three hundred thirty-one million, forty-one thousand, four hundred twenty-one".

Divisors: 1 41 743 10867 30463 445547 8074181 331041421