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1389031040860 = 225671203786117
BaseRepresentation
bin10100001101101000101…
…100111010011101011100
311220210022221221221021221
4110031220230322131130
5140224213421301420
62542040111503124
7202232325016231
oct24155054723534
94823287857257
101389031040860
114960a28a0a01
121a5253827aa4
13a0ca625a1c8
144b32d8d9788
15261ea1a2caa
hex14368b3a75c

1389031040860 has 48 divisors (see below), whose sum is σ = 2960782310304. Its totient is φ = 547267868928.

The previous prime is 1389031040843. The next prime is 1389031040897. The reversal of 1389031040860 is 680401309831.

It is a super-2 number, since 2×13890310408602 (a number of 25 digits) contains 22 as substring.

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, 16086522 + ... + 16172638.

It is an arithmetic number, because the mean of its divisors is an integer number (61682964798).

Almost surely, 21389031040860 is an apocalyptic number.

1389031040860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1389031040860 is an abundant number, since it is smaller than the sum of its proper divisors (1571751269444).

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

1389031040860 is a wasteful number, since it uses less digits than its factorization.

1389031040860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98230 (or 98228 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 43.

The spelling of 1389031040860 in words is "one trillion, three hundred eighty-nine billion, thirty-one million, forty thousand, eight hundred sixty".

Divisors: 1 2 4 5 10 20 67 134 268 335 670 1340 12037 24074 48148 60185 86117 120370 172234 240740 344468 430585 806479 861170 1612958 1722340 3225916 4032395 5769839 8064790 11539678 16129580 23079356 28849195 57698390 115396780 1036590329 2073180658 4146361316 5182951645 10365903290 20731806580 69451552043 138903104086 277806208172 347257760215 694515520430 1389031040860