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364222081 = 2111726171
BaseRepresentation
bin10101101101011…
…001011010000001
3221101100101202201
4111231121122001
51221220101311
6100050313201
712011556646
oct2555313201
9841311681
10364222081
11177659493
12a1b88801
135a5c5732
143652ddcd
1521e979c1
hex15b59681

364222081 has 4 divisors (see below), whose sum is σ = 365948464. Its totient is φ = 362495700.

The previous prime is 364222031. The next prime is 364222097. The reversal of 364222081 is 180222463.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 180222463 = 792281297.

It is a cyclic number.

It is not a de Polignac number, because 364222081 - 29 = 364221569 is a prime.

It is a super-2 number, since 2×3642220812 = 265315448575941122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (364222031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 862875 + ... + 863296.

It is an arithmetic number, because the mean of its divisors is an integer number (91487116).

Almost surely, 2364222081 is an apocalyptic number.

It is an amenable number.

364222081 is a deficient number, since it is larger than the sum of its proper divisors (1726383).

364222081 is a wasteful number, since it uses less digits than its factorization.

364222081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1726382.

The product of its (nonzero) digits is 4608, while the sum is 28.

The square root of 364222081 is about 19084.6032445005. The cubic root of 364222081 is about 714.1488762310.

It can be divided in two parts, 36422 and 2081, that added together give a triangular number (38503 = T277).

The spelling of 364222081 in words is "three hundred sixty-four million, two hundred twenty-two thousand, eighty-one".

Divisors: 1 211 1726171 364222081