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2290170420 = 2232512723169
BaseRepresentation
bin1000100010000001…
…0011101000110100
312220121100201012200
42020200103220310
514142240423140
61015130144500
7110516061456
oct21040235064
95817321180
102290170420
11a75817a2a
1253ab82130
132a6613035
1417a2302d6
15d60ce030
hex88813a34

2290170420 has 36 divisors (see below), whose sum is σ = 6946850820. Its totient is φ = 610712064.

The previous prime is 2290170413. The next prime is 2290170431. The reversal of 2290170420 is 240710922.

2290170420 is a `hidden beast` number, since 229 + 0 + 17 + 0 + 420 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1055210256 + 1234960164 = 32484^2 + 35142^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6361405 + ... + 6361764.

Almost surely, 22290170420 is an apocalyptic number.

2290170420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2290170420 is an abundant number, since it is smaller than the sum of its proper divisors (4656680400).

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

2290170420 is a wasteful number, since it uses less digits than its factorization.

2290170420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12723184 (or 12723179 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 2290170420 is about 47855.7250493606. The cubic root of 2290170420 is about 1318.1229864595.

The spelling of 2290170420 in words is "two billion, two hundred ninety million, one hundred seventy thousand, four hundred twenty".

Divisors: 1 2 3 4 5 6 9 10 12 15 18 20 30 36 45 60 90 180 12723169 25446338 38169507 50892676 63615845 76339014 114508521 127231690 152678028 190847535 229017042 254463380 381695070 458034084 572542605 763390140 1145085210 2290170420