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201295420 = 22515116661
BaseRepresentation
bin10111111111110…
…00011000111100
3112000202212101221
423333320120330
5403012423140
631550243124
74662661054
oct1377703074
9460685357
10201295420
11a3698257
12574b64a4
133291bb21
141ca3c564
1512a1314a
hexbff863c

201295420 has 24 divisors (see below), whose sum is σ = 423063648. Its totient is φ = 80452800.

The previous prime is 201295417. The next prime is 201295447. The reversal of 201295420 is 24592102.

It is a super-2 number, since 2×2012954202 = 81039692225952800, which contains 22 as substring.

It is a congruent number.

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, 26890 + ... + 33550.

It is an arithmetic number, because the mean of its divisors is an integer number (17627652).

Almost surely, 2201295420 is an apocalyptic number.

201295420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201295420 is an abundant number, since it is smaller than the sum of its proper divisors (221768228).

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

201295420 is a wasteful number, since it uses less digits than its factorization.

201295420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8181 (or 8179 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 201295420 is about 14187.8617134507. The cubic root of 201295420 is about 586.0634417447.

The spelling of 201295420 in words is "two hundred one million, two hundred ninety-five thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 1511 3022 6044 6661 7555 13322 15110 26644 30220 33305 66610 133220 10064771 20129542 40259084 50323855 100647710 201295420