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1442250231 = 33115508067
BaseRepresentation
bin101010111110110…
…1111110111110111
310201111211220101020
41111331233313313
510423204001411
6355040232223
750511632112
oct12575576767
93644756336
101442250231
11680126a44
1234300b673
1319ca52606
14d978d579
158693d606
hex55f6fdf7

1442250231 has 8 divisors (see below), whose sum is σ = 1985032704. Its totient is φ = 930483960.

The previous prime is 1442250217. The next prime is 1442250287. The reversal of 1442250231 is 1320522441.

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

It is not a de Polignac number, because 1442250231 - 226 = 1375141367 is a prime.

It is a super-2 number, since 2×14422502312 = 4160171457639106722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1442250211) 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, 7753941 + ... + 7754126.

It is an arithmetic number, because the mean of its divisors is an integer number (248129088).

Almost surely, 21442250231 is an apocalyptic number.

1442250231 is a deficient number, since it is larger than the sum of its proper divisors (542782473).

1442250231 is a wasteful number, since it uses less digits than its factorization.

1442250231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15508101.

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 1442250231 is about 37976.9697448335. The cubic root of 1442250231 is about 1129.8311364344.

Adding to 1442250231 its reverse (1320522441), we get a palindrome (2762772672).

The spelling of 1442250231 in words is "one billion, four hundred forty-two million, two hundred fifty thousand, two hundred thirty-one".

Divisors: 1 3 31 93 15508067 46524201 480750077 1442250231