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1470421640 = 235167220123
BaseRepresentation
bin101011110100100…
…1101101010001000
310210110212011021202
41113221031222020
511002411443030
6401524123332
751303243362
oct12751155210
93713764252
101470421640
116950185a6
12350536548
131a583719c
14dd403d32
1589155745
hex57a4da88

1470421640 has 32 divisors (see below), whose sum is σ = 3328274880. Its totient is φ = 584644032.

The previous prime is 1470421639. The next prime is 1470421661. The reversal of 1470421640 is 461240741.

It is a happy 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, 103382 + ... + 116741.

It is an arithmetic number, because the mean of its divisors is an integer number (104008590).

Almost surely, 21470421640 is an apocalyptic number.

1470421640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1470421640 is an abundant number, since it is smaller than the sum of its proper divisors (1857853240).

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

1470421640 is a wasteful number, since it uses less digits than its factorization.

1470421640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220301 (or 220297 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 29.

The square root of 1470421640 is about 38346.0772439633. The cubic root of 1470421640 is about 1137.1400662914.

The spelling of 1470421640 in words is "one billion, four hundred seventy million, four hundred twenty-one thousand, six hundred forty".

Divisors: 1 2 4 5 8 10 20 40 167 334 668 835 1336 1670 3340 6680 220123 440246 880492 1100615 1760984 2201230 4402460 8804920 36760541 73521082 147042164 183802705 294084328 367605410 735210820 1470421640