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45620189 = 311471619
BaseRepresentation
bin1010111000000…
…1101111011101
310011211202010122
42232001233131
543134321224
64305444325
71062523316
oct256015735
9104752118
1045620189
112382a13a
12133406a5
1395b39c4
1460b760d
15401215e
hex2b81bdd

45620189 has 4 divisors (see below), whose sum is σ = 47091840. Its totient is φ = 44148540.

The previous prime is 45620177. The next prime is 45620191. The reversal of 45620189 is 98102654.

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.

It is a cyclic number.

It is not a de Polignac number, because 45620189 - 28 = 45619933 is a prime.

It is a super-3 number, since 3×456201893 (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45620089) 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, 735779 + ... + 735840.

It is an arithmetic number, because the mean of its divisors is an integer number (11772960).

Almost surely, 245620189 is an apocalyptic number.

It is an amenable number.

45620189 is a deficient number, since it is larger than the sum of its proper divisors (1471651).

45620189 is a wasteful number, since it uses less digits than its factorization.

45620189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1471650.

The product of its (nonzero) digits is 17280, while the sum is 35.

The square root of 45620189 is about 6754.2719074672. The cubic root of 45620189 is about 357.3159148113.

The spelling of 45620189 in words is "forty-five million, six hundred twenty thousand, one hundred eighty-nine".

Divisors: 1 31 1471619 45620189