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440145241 = 19103122469
BaseRepresentation
bin11010001111000…
…001010101011001
31010200012200202121
4122033001111121
51400134121431
6111401501241
713623113164
oct3217012531
91120180677
10440145241
112064a56a8
121034a1821
1370259293
1442654adb
1528993611
hex1a3c1559

440145241 has 8 divisors (see below), whose sum is σ = 463780800. Its totient is φ = 416556720.

The previous prime is 440145239. The next prime is 440145257. The reversal of 440145241 is 142541044.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 440145241 - 21 = 440145239 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (440146241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8355 + ... + 30823.

It is an arithmetic number, because the mean of its divisors is an integer number (57972600).

Almost surely, 2440145241 is an apocalyptic number.

It is an amenable number.

440145241 is a deficient number, since it is larger than the sum of its proper divisors (23635559).

440145241 is a wasteful number, since it uses less digits than its factorization.

440145241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23519.

The product of its (nonzero) digits is 2560, while the sum is 25.

The square root of 440145241 is about 20979.6387242488. The cubic root of 440145241 is about 760.6741715242.

Adding to 440145241 its reverse (142541044), we get a palindrome (582686285).

The spelling of 440145241 in words is "four hundred forty million, one hundred forty-five thousand, two hundred forty-one".

Divisors: 1 19 1031 19589 22469 426911 23165539 440145241