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3640524341 = 23158283667
BaseRepresentation
bin1101100011111101…
…1111111000110101
3100101201021210112212
43120333133320311
524423433234331
61401125023205
7156133642406
oct33077377065
910351253485
103640524341
1115a8a87903
12857254b05
134602cb51c
142676db9ad
15164918d2b
hexd8fdfe35

3640524341 has 4 divisors (see below), whose sum is σ = 3798808032. Its totient is φ = 3482240652.

The previous prime is 3640524257. The next prime is 3640524389. The reversal of 3640524341 is 1434250463.

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: 1434250463 = 1777807119.

It is a cyclic number.

It is not a de Polignac number, because 3640524341 - 222 = 3636330037 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 3640524298 and 3640524307.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3640526341) 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, 79141811 + ... + 79141856.

It is an arithmetic number, because the mean of its divisors is an integer number (949702008).

Almost surely, 23640524341 is an apocalyptic number.

It is an amenable number.

3640524341 is a deficient number, since it is larger than the sum of its proper divisors (158283691).

3640524341 is a wasteful number, since it uses less digits than its factorization.

3640524341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158283690.

The product of its (nonzero) digits is 34560, while the sum is 32.

The square root of 3640524341 is about 60336.7577932391. The cubic root of 3640524341 is about 1538.3481953151.

The spelling of 3640524341 in words is "three billion, six hundred forty million, five hundred twenty-four thousand, three hundred forty-one".

Divisors: 1 23 158283667 3640524341