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42087939630 = 23511831536617
BaseRepresentation
bin100111001100101000…
…101111111000101110
311000122011212212012220
4213030220233320232
51142144003032010
631200202340210
73016656404232
oct471450577056
9130564785186
1042087939630
11169385a9a90
1281a71ba666
133c79809ab9
1420739d85c2
151164e6a970
hex9cca2fe2e

42087939630 has 64 divisors (see below), whose sum is σ = 111521587968. Its totient is φ = 10080200960.

The previous prime is 42087939587. The next prime is 42087939667. The reversal of 42087939630 is 3693978024.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 740919 + ... + 795698.

It is an arithmetic number, because the mean of its divisors is an integer number (1742524812).

Almost surely, 242087939630 is an apocalyptic number.

42087939630 is an abundant number, since it is smaller than the sum of its proper divisors (69433648338).

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

42087939630 is a wasteful number, since it uses less digits than its factorization.

42087939630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1536721.

The product of its (nonzero) digits is 1959552, while the sum is 51.

The spelling of 42087939630 in words is "forty-two billion, eighty-seven million, nine hundred thirty-nine thousand, six hundred thirty".

Divisors: 1 2 3 5 6 10 11 15 22 30 33 55 66 83 110 165 166 249 330 415 498 830 913 1245 1826 2490 2739 4565 5478 9130 13695 27390 1536617 3073234 4609851 7683085 9219702 15366170 16902787 23049255 33805574 46098510 50708361 84513935 101416722 127539211 169027870 253541805 255078422 382617633 507083610 637696055 765235266 1275392110 1402931321 1913088165 2805862642 3826176330 4208793963 7014656605 8417587926 14029313210 21043969815 42087939630