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1304495352 = 233218117991
BaseRepresentation
bin100110111000001…
…0000010011111000
310100220122020012200
41031300100103320
510132422322402
6333235510200
744220012306
oct11560202370
93326566180
101304495352
1160a398736
12304a58360
1317a350154
14c5371276
15797cc21c
hex4dc104f8

1304495352 has 24 divisors (see below), whose sum is σ = 3533008440. Its totient is φ = 434831760.

The previous prime is 1304495351. The next prime is 1304495389. The reversal of 1304495352 is 2535944031.

1304495352 is a `hidden beast` number, since 130 + 4 + 495 + 35 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-3 number, since 3×13044953523 (a number of 28 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1304495351) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 9058924 + ... + 9059067.

It is an arithmetic number, because the mean of its divisors is an integer number (147208685).

Almost surely, 21304495352 is an apocalyptic number.

1304495352 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1304495352 is an abundant number, since it is smaller than the sum of its proper divisors (2228513088).

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

1304495352 is a wasteful number, since it uses less digits than its factorization.

1304495352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18118003 (or 18117996 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 36.

The square root of 1304495352 is about 36117.7982717662. The cubic root of 1304495352 is about 1092.6494345666.

The spelling of 1304495352 in words is "one billion, three hundred four million, four hundred ninety-five thousand, three hundred fifty-two".

Divisors: 1 2 3 4 6 8 9 12 18 24 36 72 18117991 36235982 54353973 72471964 108707946 144943928 163061919 217415892 326123838 434831784 652247676 1304495352