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427220360 = 23571525787
BaseRepresentation
bin11001011101101…
…101110110001000
31002202220001011022
4121131231312020
51333332022420
6110220452012
713405212260
oct3135556610
91082801138
10427220360
111aa177a86
12bb0aa008
136a682318
1440a4c7a0
152778dc25
hex1976dd88

427220360 has 32 divisors (see below), whose sum is σ = 1098567360. Its totient is φ = 146475456.

The previous prime is 427220359. The next prime is 427220363. The reversal of 427220360 is 63022724.

It is not an unprimeable number, because it can be changed into a prime (427220363) 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, 762614 + ... + 763173.

It is an arithmetic number, because the mean of its divisors is an integer number (34330230).

Almost surely, 2427220360 is an apocalyptic number.

427220360 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

427220360 is an abundant number, since it is smaller than the sum of its proper divisors (671347000).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

427220360 is a wasteful number, since it uses less digits than its factorization.

427220360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1525805 (or 1525801 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 26.

The square root of 427220360 is about 20669.3096159499. The cubic root of 427220360 is about 753.1543356972.

The spelling of 427220360 in words is "four hundred twenty-seven million, two hundred twenty thousand, three hundred sixty".

Divisors: 1 2 4 5 7 8 10 14 20 28 35 40 56 70 140 280 1525787 3051574 6103148 7628935 10680509 12206296 15257870 21361018 30515740 42722036 53402545 61031480 85444072 106805090 213610180 427220360