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1422228081 = 31478332069
BaseRepresentation
bin101010011000101…
…0111101001110001
310200010011200011010
41110301113221301
510403042244311
6353043141133
750146511361
oct12461275161
93603150133
101422228081
1166a8a100a
123383747a9
131988620a1
14d6c5a9a1
1584cd5da6
hex54c57a71

1422228081 has 8 divisors (see below), whose sum is σ = 1896491520. Its totient is φ = 948058352.

The previous prime is 1422228077. The next prime is 1422228083. The reversal of 1422228081 is 1808222241.

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 1422228081 - 22 = 1422228077 is a prime.

It is a super-2 number, since 2×14222280812 = 4045465428769885122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1422228083) 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, 28315 + ... + 60383.

It is an arithmetic number, because the mean of its divisors is an integer number (237061440).

Almost surely, 21422228081 is an apocalyptic number.

It is an amenable number.

1422228081 is a deficient number, since it is larger than the sum of its proper divisors (474263439).

1422228081 is a wasteful number, since it uses less digits than its factorization.

1422228081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46855.

The product of its (nonzero) digits is 4096, while the sum is 30.

The square root of 1422228081 is about 37712.4393403556. The cubic root of 1422228081 is about 1124.5784312808.

It can be divided in two parts, 1422 and 228081, that added together give a triangular number (229503 = T677).

The spelling of 1422228081 in words is "one billion, four hundred twenty-two million, two hundred twenty-eight thousand, eighty-one".

Divisors: 1 3 14783 32069 44349 96207 474076027 1422228081