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162530023 = 224372461
BaseRepresentation
bin10011011000000…
…00001011100111
3102022211101021111
421230000023213
5313101430043
624043325451
74012324315
oct1154001347
9368741244
10162530023
1183820237
1246520887
1327898216
141782b0b5
15e40709d
hex9b002e7

162530023 has 4 divisors (see below), whose sum is σ = 162604728. Its totient is φ = 162455320.

The previous prime is 162529973. The next prime is 162530041. The reversal of 162530023 is 320035261.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-162530023 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 162529976 and 162530003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (162530063) 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, 33988 + ... + 38473.

It is an arithmetic number, because the mean of its divisors is an integer number (40651182).

Almost surely, 2162530023 is an apocalyptic number.

162530023 is a deficient number, since it is larger than the sum of its proper divisors (74705).

162530023 is an equidigital number, since it uses as much as digits as its factorization.

162530023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74704.

The product of its (nonzero) digits is 1080, while the sum is 22.

The square root of 162530023 is about 12748.7263285396. The cubic root of 162530023 is about 545.7300465262.

Adding to 162530023 its reverse (320035261), we get a palindrome (482565284).

The spelling of 162530023 in words is "one hundred sixty-two million, five hundred thirty thousand, twenty-three".

Divisors: 1 2243 72461 162530023