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420154106 = 21923574691
BaseRepresentation
bin11001000010110…
…000101011111010
31002021121001002012
4121002300223322
51330024412411
6105405205522
713261152041
oct3102605372
91067531065
10420154106
111a6190aa9
12b88608a2
1369079bc8
143db2d558
1526d4518b
hex190b0afa

420154106 has 16 divisors (see below), whose sum is σ = 663824160. Its totient is φ = 198893520.

The previous prime is 420154069. The next prime is 420154123. The reversal of 420154106 is 601451024.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 87221 + ... + 91911.

It is an arithmetic number, because the mean of its divisors is an integer number (41489010).

Almost surely, 2420154106 is an apocalyptic number.

420154106 is a deficient number, since it is larger than the sum of its proper divisors (243670054).

420154106 is a wasteful number, since it uses less digits than its factorization.

420154106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7069.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 420154106 is about 20497.6609885128. The cubic root of 420154106 is about 748.9788211858.

The spelling of 420154106 in words is "four hundred twenty million, one hundred fifty-four thousand, one hundred six".

Divisors: 1 2 19 38 2357 4691 4714 9382 44783 89129 89566 178258 11056687 22113374 210077053 420154106