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344061421 = 1143971249
BaseRepresentation
bin10100100000011…
…111010111101101
3212222102010112121
4110200133113231
51201034431141
654050232541
711345321344
oct2440372755
9788363477
10344061421
11167239490
1297285751
1356387152
14339a2b5b
15203141d1
hex1481f5ed

344061421 has 8 divisors (see below), whose sum is σ = 376200000. Its totient is φ = 312066240.

The previous prime is 344061401. The next prime is 344061427. The reversal of 344061421 is 124160443.

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-344061421 is a prime.

It is a super-2 number, since 2×3440614212 = 236756522841078482, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (344061427) 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, 30796 + ... + 40453.

It is an arithmetic number, because the mean of its divisors is an integer number (47025000).

Almost surely, 2344061421 is an apocalyptic number.

It is an amenable number.

344061421 is a deficient number, since it is larger than the sum of its proper divisors (32138579).

344061421 is a wasteful number, since it uses less digits than its factorization.

344061421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71699.

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 344061421 is about 18548.8927162782. The cubic root of 344061421 is about 700.7213115748.

The spelling of 344061421 in words is "three hundred forty-four million, sixty-one thousand, four hundred twenty-one".

Divisors: 1 11 439 4829 71249 783739 31278311 344061421