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1204148240 = 24515051853
BaseRepresentation
bin100011111000101…
…1101100000010000
310002220211001211222
41013301131200100
54431230220430
6315253024212
741561043161
oct10761354020
93086731758
101204148240
1156878a439
12297325068
13162617669
14b5ccd768
1570aa99e5
hex47c5d810

1204148240 has 20 divisors (see below), whose sum is σ = 2799644844. Its totient is φ = 481659264.

The previous prime is 1204148219. The next prime is 1204148251. The reversal of 1204148240 is 428414021.

It can be written as a sum of positive squares in 2 ways, for example, as 358269184 + 845879056 = 18928^2 + 29084^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7525847 + ... + 7526006.

Almost surely, 21204148240 is an apocalyptic number.

1204148240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1204148240 is an abundant number, since it is smaller than the sum of its proper divisors (1595496604).

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

1204148240 is a wasteful number, since it uses less digits than its factorization.

1204148240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15051866 (or 15051860 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 26.

The square root of 1204148240 is about 34700.8391829362. The cubic root of 1204148240 is about 1063.8816505822.

The spelling of 1204148240 in words is "one billion, two hundred four million, one hundred forty-eight thousand, two hundred forty".

Divisors: 1 2 4 5 8 10 16 20 40 80 15051853 30103706 60207412 75259265 120414824 150518530 240829648 301037060 602074120 1204148240