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140883280 = 2452323329
BaseRepresentation
bin10000110010110…
…11010101010000
3100211002121112021
420121123111100
5242031231110
621551341224
73330326266
oct1031332520
9324077467
10140883280
117258576a
123b221814
13232593b5
14149d4436
15c57d2da
hex865b550

140883280 has 60 divisors (see below), whose sum is σ = 342517140. Its totient is φ = 53886976.

The previous prime is 140883269. The next prime is 140883289. The reversal of 140883280 is 82388041.

It can be written as a sum of positive squares in 2 ways, for example, as 52823824 + 88059456 = 7268^2 + 9384^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140883289) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 40656 + ... + 43984.

It is an arithmetic number, because the mean of its divisors is an integer number (5708619).

Almost surely, 2140883280 is an apocalyptic number.

140883280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 140883280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (171258570).

140883280 is an abundant number, since it is smaller than the sum of its proper divisors (201633860).

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

140883280 is a wasteful number, since it uses less digits than its factorization.

140883280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3388 (or 3359 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 34.

The square root of 140883280 is about 11869.4262708861. The cubic root of 140883280 is about 520.3391278956.

The spelling of 140883280 in words is "one hundred forty million, eight hundred eighty-three thousand, two hundred eighty".

Divisors: 1 2 4 5 8 10 16 20 23 40 46 80 92 115 184 230 368 460 529 920 1058 1840 2116 2645 3329 4232 5290 6658 8464 10580 13316 16645 21160 26632 33290 42320 53264 66580 76567 133160 153134 266320 306268 382835 612536 765670 1225072 1531340 1761041 3062680 3522082 6125360 7044164 8805205 14088328 17610410 28176656 35220820 70441640 140883280