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420370832 = 24717220783
BaseRepresentation
bin11001000011100…
…101100110010000
31002022000001101002
4121003211212100
51330103331312
6105414001132
713263043640
oct3103454620
91068001332
10420370832
111a6319912
12b89461a8
136912474b
143db88520
1526d894c2
hex190e5990

420370832 has 40 divisors (see below), whose sum is σ = 985579776. Its totient is φ = 169560576.

The previous prime is 420370799. The next prime is 420370837. The reversal of 420370832 is 238073024.

It is a junction number, because it is equal to n+sod(n) for n = 420370795 and 420370804.

It is not an unprimeable number, because it can be changed into a prime (420370837) 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, 108488 + ... + 112295.

Almost surely, 2420370832 is an apocalyptic number.

It is an amenable number.

420370832 is an abundant number, since it is smaller than the sum of its proper divisors (565208944).

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

420370832 is a wasteful number, since it uses less digits than its factorization.

420370832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220815 (or 220809 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 29.

The square root of 420370832 is about 20502.9469101395. The cubic root of 420370832 is about 749.1075797211.

The spelling of 420370832 in words is "four hundred twenty million, three hundred seventy thousand, eight hundred thirty-two".

Divisors: 1 2 4 7 8 14 16 17 28 34 56 68 112 119 136 238 272 476 952 1904 220783 441566 883132 1545481 1766264 3090962 3532528 3753311 6181924 7506622 12363848 15013244 24727696 26273177 30026488 52546354 60052976 105092708 210185416 420370832