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1350444431 = 71295914887
BaseRepresentation
bin101000001111110…
…0010010110001111
310111010002200111102
41100133202112033
510231203210211
6342000413315
745315405530
oct12037422617
93433080442
101350444431
11633321986
1231831723b
13186a1a75b
14cb4d2687
157d856a3b
hex507e258f

1350444431 has 8 divisors (see below), whose sum is σ = 1543587840. Its totient is φ = 1157356728.

The previous prime is 1350444397. The next prime is 1350444443. The reversal of 1350444431 is 1344440531.

It is a happy number.

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 1350444431 - 26 = 1350444367 is a prime.

It is a super-2 number, since 2×13504444312 = 3647400322437827522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1350444394 and 1350444403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1350444461) 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, 83270 + ... + 98156.

It is an arithmetic number, because the mean of its divisors is an integer number (192948480).

Almost surely, 21350444431 is an apocalyptic number.

1350444431 is a deficient number, since it is larger than the sum of its proper divisors (193143409).

1350444431 is a wasteful number, since it uses less digits than its factorization.

1350444431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27853.

The product of its (nonzero) digits is 11520, while the sum is 29.

The square root of 1350444431 is about 36748.3935839378. The cubic root of 1350444431 is about 1105.3307176044.

Adding to 1350444431 its reverse (1344440531), we get a palindrome (2694884962).

The spelling of 1350444431 in words is "one billion, three hundred fifty million, four hundred forty-four thousand, four hundred thirty-one".

Divisors: 1 7 12959 14887 90713 104209 192920633 1350444431