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4445005407 = 31977982551
BaseRepresentation
bin1000010001111000…
…10110011001011111
3102110210001200002220
410020330112121133
533100410133112
62013023520423
7215102631303
oct41074263137
912423050086
104445005407
1119810a9397
12a40759113
1355ab8cc1b
143024b1d03
151b037898c
hex108f1665f

4445005407 has 8 divisors (see below), whose sum is σ = 6238604160. Its totient is φ = 2807371800.

The previous prime is 4445005391. The next prime is 4445005441. The reversal of 4445005407 is 7045005444.

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

It is not a de Polignac number, because 4445005407 - 24 = 4445005391 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4445004407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38991219 + ... + 38991332.

It is an arithmetic number, because the mean of its divisors is an integer number (779825520).

Almost surely, 24445005407 is an apocalyptic number.

4445005407 is a deficient number, since it is larger than the sum of its proper divisors (1793598753).

4445005407 is a wasteful number, since it uses less digits than its factorization.

4445005407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77982573.

The product of its (nonzero) digits is 44800, while the sum is 33.

The square root of 4445005407 is about 66670.8737530865. The cubic root of 4445005407 is about 1644.2105526083.

The spelling of 4445005407 in words is "four billion, four hundred forty-five million, five thousand, four hundred seven".

Divisors: 1 3 19 57 77982551 233947653 1481668469 4445005407