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140849712 = 24335712
BaseRepresentation
bin10000110010100…
…11001000110000
3100211000220111000
420121103020300
5242024142322
621550522000
73330126363
oct1031231060
9324026430
10140849712
1172562523
123b206300
1323247033
14149c60da
15c5733ac
hex8653230

140849712 has 60 divisors (see below), whose sum is σ = 405000120. Its totient is φ = 46867680.

The previous prime is 140849711. The next prime is 140849749. The reversal of 140849712 is 217948041.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (140849711) 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, 246387 + ... + 246957.

It is an arithmetic number, because the mean of its divisors is an integer number (6750002).

Almost surely, 2140849712 is an apocalyptic number.

140849712 is a gapful number since it is divisible by the number (12) 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 140849712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (202500060).

140849712 is an abundant number, since it is smaller than the sum of its proper divisors (264150408).

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

140849712 is an frugal number, since it uses more digits than its factorization.

140849712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1159 (or 576 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 36.

The square root of 140849712 is about 11868.0121334619. The cubic root of 140849712 is about 520.2977978639.

The spelling of 140849712 in words is "one hundred forty million, eight hundred forty-nine thousand, seven hundred twelve".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 27 36 48 54 72 108 144 216 432 571 1142 1713 2284 3426 4568 5139 6852 9136 10278 13704 15417 20556 27408 30834 41112 61668 82224 123336 246672 326041 652082 978123 1304164 1956246 2608328 2934369 3912492 5216656 5868738 7824984 8803107 11737476 15649968 17606214 23474952 35212428 46949904 70424856 140849712