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12338452530 = 2325373705241
BaseRepresentation
bin10110111110110110…
…11101100000110010
31011211212222022221100
423133123131200302
5200232120440110
65400155505230
7614521054545
oct133733354062
934755868840
1012338452530
11526180a008
122484158216
1312183069b1
1485096085c
154c3327bc0
hex2df6dd832

12338452530 has 48 divisors (see below), whose sum is σ = 32947011864. Its totient is φ = 3201327360.

The previous prime is 12338452517. The next prime is 12338452561. The reversal of 12338452530 is 3525483321.

12338452530 is a `hidden beast` number, since 1 + 23 + 3 + 84 + 525 + 30 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 12023780409 + 314672121 = 109653^2 + 17739^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1849291 + ... + 1855950.

Almost surely, 212338452530 is an apocalyptic number.

12338452530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12338452530 is an abundant number, since it is smaller than the sum of its proper divisors (20608559334).

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

12338452530 is a wasteful number, since it uses less digits than its factorization.

12338452530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3705291 (or 3705288 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 36.

The spelling of 12338452530 in words is "twelve billion, three hundred thirty-eight million, four hundred fifty-two thousand, five hundred thirty".

Divisors: 1 2 3 5 6 9 10 15 18 30 37 45 74 90 111 185 222 333 370 555 666 1110 1665 3330 3705241 7410482 11115723 18526205 22231446 33347169 37052410 55578615 66694338 111157230 137093917 166735845 274187834 333471690 411281751 685469585 822563502 1233845253 1370939170 2056408755 2467690506 4112817510 6169226265 12338452530