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868381946790 = 235246711173283
BaseRepresentation
bin11001010001011111001…
…10001111001110100110
310002000110000211120010120
430220233212033032212
5103211421234244130
61502532410502410
7116511212521251
oct14505746171646
93060400746116
10868381946790
11305307a74506
1212036b434a06
1363b71109c97
143005c108098
15178c6839910
hexca2f98f3a6

868381946790 has 32 divisors (see below), whose sum is σ = 2084202925056. Its totient is φ = 231558935520.

The previous prime is 868381946777. The next prime is 868381946801. The reversal of 868381946790 is 97649183868.

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, 153489 + ... + 1326771.

It is an arithmetic number, because the mean of its divisors is an integer number (65131341408).

Almost surely, 2868381946790 is an apocalyptic number.

868381946790 is an abundant number, since it is smaller than the sum of its proper divisors (1215820978266).

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

868381946790 is a wasteful number, since it uses less digits than its factorization.

868381946790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1197964.

The product of its (nonzero) digits is 125411328, while the sum is 69.

The spelling of 868381946790 in words is "eight hundred sixty-eight billion, three hundred eighty-one million, nine hundred forty-six thousand, seven hundred ninety".

Divisors: 1 2 3 5 6 10 15 30 24671 49342 74013 123355 148026 246710 370065 740130 1173283 2346566 3519849 5866415 7039698 11732830 17599245 35198490 28946064893 57892129786 86838194679 144730324465 173676389358 289460648930 434190973395 868381946790