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12149151730 = 2547243710607
BaseRepresentation
bin10110101000010010…
…10101011111110010
31011100200202212001121
423110021111133302
5144340140323410
65325314252454
7610032041302
oct132411253762
934320685047
1012149151730
115174974571
12243088712a
1311b80275a1
14833765602
154b18d39da
hex2d42557f2

12149151730 has 32 divisors (see below), whose sum is σ = 22345030656. Its totient is φ = 4753863744.

The previous prime is 12149151667. The next prime is 12149151733. The reversal of 12149151730 is 3715194121.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (12149151733) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1140087 + ... + 1150693.

It is an arithmetic number, because the mean of its divisors is an integer number (698282208).

Almost surely, 212149151730 is an apocalyptic number.

12149151730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12149151730 is a deficient number, since it is larger than the sum of its proper divisors (10195878926).

12149151730 is a wasteful number, since it uses less digits than its factorization.

12149151730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13098.

The product of its (nonzero) digits is 7560, while the sum is 34.

The spelling of 12149151730 in words is "twelve billion, one hundred forty-nine million, one hundred fifty-one thousand, seven hundred thirty".

Divisors: 1 2 5 10 47 94 235 470 2437 4874 10607 12185 21214 24370 53035 106070 114539 229078 498529 572695 997058 1145390 2492645 4985290 25849259 51698518 129246295 258492590 1214915173 2429830346 6074575865 12149151730