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140662928 = 247319271
BaseRepresentation
bin10000110001001…
…01100010010000
3100210200102021002
420120211202100
5242002203203
621542521132
73325421000
oct1030454220
9323612232
10140662928
117244515a
123b1361a8
13231b0003
1414978000
15c537d88
hex8625890

140662928 has 120 divisors (see below), whose sum is σ = 340156800. Its totient is φ = 56306880.

The previous prime is 140662927. The next prime is 140662943. The reversal of 140662928 is 829266041.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a junction number, because it is equal to n+sod(n) for n = 140662891 and 140662900.

It is not an unprimeable number, because it can be changed into a prime (140662927) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1981133 + ... + 1981203.

It is an arithmetic number, because the mean of its divisors is an integer number (2834640).

Almost surely, 2140662928 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 140662928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (170078400).

140662928 is an abundant number, since it is smaller than the sum of its proper divisors (199493872).

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

140662928 is an equidigital number, since it uses as much as digits as its factorization.

140662928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138 (or 99 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 38.

The square root of 140662928 is about 11860.1403027114. The cubic root of 140662928 is about 520.0677032163.

The spelling of 140662928 in words is "one hundred forty million, six hundred sixty-two thousand, nine hundred twenty-eight".

Divisors: 1 2 4 7 8 14 16 19 28 38 49 56 71 76 98 112 133 142 152 196 266 284 304 343 361 392 497 532 568 686 722 784 931 994 1064 1136 1349 1372 1444 1862 1988 2128 2527 2698 2744 2888 3479 3724 3976 5054 5396 5488 5776 6517 6958 7448 7952 9443 10108 10792 13034 13916 14896 17689 18886 20216 21584 24353 25631 26068 27832 35378 37772 40432 48706 51262 52136 55664 66101 70756 75544 97412 102524 104272 123823 132202 141512 151088 179417 194824 205048 247646 264404 283024 358834 389648 410096 462707 495292 528808 717668 925414 990584 1057616 1255919 1435336 1850828 1981168 2511838 2870672 3701656 5023676 7403312 8791433 10047352 17582866 20094704 35165732 70331464 140662928