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12345016870 = 2519131495983
BaseRepresentation
bin10110111111101001…
…00000001000100110
31011212100022211112001
423133310200020212
5200240311014440
65400552315514
7614630624554
oct133764401046
934770284461
1012345016870
11526549298a
1224863a2b9a
131219794814
1485178cbd4
154c3bc2b9a
hex2dfd20226

12345016870 has 32 divisors (see below), whose sum is σ = 23569159680. Its totient is φ = 4642391520.

The previous prime is 12345016841. The next prime is 12345016903. The reversal of 12345016870 is 7861054321.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 223102 + ... + 272881.

It is an arithmetic number, because the mean of its divisors is an integer number (736536240).

Almost surely, 212345016870 is an apocalyptic number.

12345016870 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12345016870 is a deficient number, since it is larger than the sum of its proper divisors (11224142810).

12345016870 is a wasteful number, since it uses less digits than its factorization.

12345016870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 496140.

The product of its (nonzero) digits is 40320, while the sum is 37.

The spelling of 12345016870 in words is "twelve billion, three hundred forty-five million, sixteen thousand, eight hundred seventy".

Divisors: 1 2 5 10 19 38 95 131 190 262 655 1310 2489 4978 12445 24890 495983 991966 2479915 4959830 9423677 18847354 47118385 64973773 94236770 129947546 324868865 649737730 1234501687 2469003374 6172508435 12345016870