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331122401 = 9712726879
BaseRepresentation
bin10011101111001…
…000011011100001
3212002001202112122
4103233020123201
51134231404101
652505034025
711130331301
oct2357103341
9762052478
10331122401
1115aa01185
1292a85915
13537a691c
1431d95601
151e10a51b
hex13bc86e1

331122401 has 8 divisors (see below), whose sum is σ = 337182720. Its totient is φ = 325116288.

The previous prime is 331122373. The next prime is 331122409. The reversal of 331122401 is 104221133.

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-331122401 is a prime.

It is a super-4 number, since 4×3311224014 (a number of 35 digits) contains 4444 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 331122401.

It is not an unprimeable number, because it can be changed into a prime (331122409) 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, 1121 + ... + 25758.

It is an arithmetic number, because the mean of its divisors is an integer number (42147840).

Almost surely, 2331122401 is an apocalyptic number.

It is an amenable number.

331122401 is a deficient number, since it is larger than the sum of its proper divisors (6060319).

331122401 is a wasteful number, since it uses less digits than its factorization.

331122401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27103.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 331122401 is about 18196.7689714411. The cubic root of 331122401 is about 691.8248976421.

Adding to 331122401 its reverse (104221133), we get a palindrome (435343534).

The spelling of 331122401 in words is "three hundred thirty-one million, one hundred twenty-two thousand, four hundred one".

Divisors: 1 97 127 12319 26879 2607263 3413633 331122401