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15530146330 = 2514910422917
BaseRepresentation
bin11100111011010101…
…10011101000011010
31111002022201011201211
432131222303220122
5223301204140310
611045012533334
71056565031356
oct163552635032
944068634654
1015530146330
11664a3a9886
12301502124a
1316066278ca
14a747c6466
1560d634c8a
hex39dab3a1a

15530146330 has 16 divisors (see below), whose sum is σ = 28141878600. Its totient is φ = 6170366272.

The previous prime is 15530146283. The next prime is 15530146361. The reversal of 15530146330 is 3364103551.

It can be written as a sum of positive squares in 4 ways, for example, as 11319044881 + 4211101449 = 106391^2 + 64893^2 .

It is a junction number, because it is equal to n+sod(n) for n = 15530146292 and 15530146301.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5209969 + ... + 5212948.

Almost surely, 215530146330 is an apocalyptic number.

15530146330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

15530146330 is a deficient number, since it is larger than the sum of its proper divisors (12611732270).

15530146330 is a wasteful number, since it uses less digits than its factorization.

15530146330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10423073.

The product of its (nonzero) digits is 16200, while the sum is 31.

Adding to 15530146330 its reverse (3364103551), we get a palindrome (18894249881).

The spelling of 15530146330 in words is "fifteen billion, five hundred thirty million, one hundred forty-six thousand, three hundred thirty".

Divisors: 1 2 5 10 149 298 745 1490 10422917 20845834 52114585 104229170 1553014633 3106029266 7765073165 15530146330