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4171420820 = 2257183116273
BaseRepresentation
bin1111100010100010…
…1101010010010100
3101202201021010121102
43320220231102110
532020340431240
61525532005232
7205241330510
oct37050552224
911681233542
104171420820
111850727226
12985000818
135162b0658
142b8017140
15196336815
hexf8a2d494

4171420820 has 48 divisors (see below), whose sum is σ = 10017493248. Its totient is φ = 1429332480.

The previous prime is 4171420819. The next prime is 4171420831. The reversal of 4171420820 is 280241714.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 248204 + ... + 264476.

It is an arithmetic number, because the mean of its divisors is an integer number (208697776).

Almost surely, 24171420820 is an apocalyptic number.

It is an amenable number.

4171420820 is an abundant number, since it is smaller than the sum of its proper divisors (5846072428).

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

4171420820 is a wasteful number, since it uses less digits than its factorization.

4171420820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18120 (or 18118 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 29.

The square root of 4171420820 is about 64586.5374517012. The cubic root of 4171420820 is about 1609.7607529993.

The spelling of 4171420820 in words is "four billion, one hundred seventy-one million, four hundred twenty thousand, eight hundred twenty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 1831 3662 7324 9155 12817 16273 18310 25634 32546 36620 51268 64085 65092 81365 113911 128170 162730 227822 256340 325460 455644 569555 1139110 2278220 29795863 59591726 119183452 148979315 208571041 297958630 417142082 595917260 834284164 1042855205 2085710410 4171420820