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65372023 = 268724329
BaseRepresentation
bin1111100101011…
…1111101110111
311120000020120001
43321113331313
5113213401043
610253052131
71422436663
oct371277567
9146006501
1065372023
113399aa72
1219a87047
131070b192
1489798a3
155b1474d
hex3e57f77

65372023 has 4 divisors (see below), whose sum is σ = 65399040. Its totient is φ = 65345008.

The previous prime is 65372017. The next prime is 65372033. The reversal of 65372023 is 32027356.

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

It is a cyclic number.

It is not a de Polignac number, because 65372023 - 25 = 65371991 is a prime.

It is a super-2 number, since 2×653720232 = 8547002782225058, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 65371982 and 65372000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65372033) 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, 9478 + ... + 14851.

It is an arithmetic number, because the mean of its divisors is an integer number (16349760).

Almost surely, 265372023 is an apocalyptic number.

65372023 is a deficient number, since it is larger than the sum of its proper divisors (27017).

65372023 is a wasteful number, since it uses less digits than its factorization.

65372023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27016.

The product of its (nonzero) digits is 7560, while the sum is 28.

The square root of 65372023 is about 8085.2967168806. The cubic root of 65372023 is about 402.8381952389.

Adding to 65372023 its reverse (32027356), we get a palindrome (97399379).

The spelling of 65372023 in words is "sixty-five million, three hundred seventy-two thousand, twenty-three".

Divisors: 1 2687 24329 65372023