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660200451 = 3265982763
BaseRepresentation
bin100111010110011…
…101110000000011
31201000021122202120
4213112131300003
52323002403301
6145302215323
722234416441
oct4726356003
91630248676
10660200451
11309736409
12165124543
13a6a15b71
1463977b91
153ce5ee36
hex2759dc03

660200451 has 8 divisors (see below), whose sum is σ = 880608960. Its totient is φ = 439962792.

The previous prime is 660200449. The next prime is 660200479. The reversal of 660200451 is 154002066.

660200451 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 660200451 - 21 = 660200449 is a prime.

It is not an unprimeable number, because it can be changed into a prime (660200251) 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, 33405 + ... + 49358.

It is an arithmetic number, because the mean of its divisors is an integer number (110076120).

Almost surely, 2660200451 is an apocalyptic number.

660200451 is a deficient number, since it is larger than the sum of its proper divisors (220408509).

660200451 is a wasteful number, since it uses less digits than its factorization.

660200451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85425.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 660200451 is about 25694.3661334542. The cubic root of 660200451 is about 870.7469038423.

The spelling of 660200451 in words is "six hundred sixty million, two hundred thousand, four hundred fifty-one".

Divisors: 1 3 2659 7977 82763 248289 220066817 660200451