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420580574 = 2673138661
BaseRepresentation
bin11001000100011…
…000110011011110
31002022101201002022
4121010120303132
51330132034244
6105422300142
713264606301
oct3104306336
91068351068
10420580574
111a6452457
12b8a27652
136919905b
143dc00b38
1526dcb6ee
hex19118cde

420580574 has 8 divisors (see below), whose sum is σ = 640287048. Its totient is φ = 207151560.

The previous prime is 420580571. The next prime is 420580579. The reversal of 420580574 is 475085024.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420580571) 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, 1569197 + ... + 1569464.

It is an arithmetic number, because the mean of its divisors is an integer number (80035881).

Almost surely, 2420580574 is an apocalyptic number.

420580574 is a deficient number, since it is larger than the sum of its proper divisors (219706474).

420580574 is a wasteful number, since it uses less digits than its factorization.

420580574 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3138730.

The product of its (nonzero) digits is 44800, while the sum is 35.

The square root of 420580574 is about 20508.0611955397. The cubic root of 420580574 is about 749.2321468778.

The spelling of 420580574 in words is "four hundred twenty million, five hundred eighty thousand, five hundred seventy-four".

Divisors: 1 2 67 134 3138661 6277322 210290287 420580574