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434840849 = 7139715427
BaseRepresentation
bin11001111010110…
…010010100010001
31010022020012111122
4121322302110101
51342304401344
6111052052025
713530041402
oct3172622421
91108205448
10434840849
11203502403
12101764015
136c11caa1
1441a739a9
1528296aee
hex19eb2511

434840849 has 8 divisors (see below), whose sum is σ = 442104768. Its totient is φ = 427608720.

The previous prime is 434840843. The next prime is 434840867. The reversal of 434840849 is 948048434.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-434840849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (434840843) 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, 20474 + ... + 35900.

It is an arithmetic number, because the mean of its divisors is an integer number (55263096).

Almost surely, 2434840849 is an apocalyptic number.

It is an amenable number.

434840849 is a deficient number, since it is larger than the sum of its proper divisors (7263919).

434840849 is a wasteful number, since it uses less digits than its factorization.

434840849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15895.

The product of its (nonzero) digits is 442368, while the sum is 44.

The square root of 434840849 is about 20852.8379123802. The cubic root of 434840849 is about 757.6060689369.

The spelling of 434840849 in words is "four hundred thirty-four million, eight hundred forty thousand, eight hundred forty-nine".

Divisors: 1 71 397 15427 28187 1095317 6124519 434840849