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140108048 = 2429378161
BaseRepresentation
bin10000101100111…
…10000100010000
3100202122020002222
420112132010100
5241331424143
621523000212
73320620163
oct1026360420
9322566088
10140108048
11720a6283
123ab09068
1323047592
1414871ada
15c478768
hex859e110

140108048 has 40 divisors (see below), whose sum is σ = 288445080. Its totient is φ = 65802240.

The previous prime is 140108041. The next prime is 140108057. The reversal of 140108048 is 840801041.

It can be written as a sum of positive squares in 4 ways, for example, as 40347904 + 99760144 = 6352^2 + 9988^2 .

It is a super-2 number, since 2×1401080482 = 39260530228740608, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140108041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13088 + ... + 21248.

It is an arithmetic number, because the mean of its divisors is an integer number (7211127).

Almost surely, 2140108048 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 140108048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (144222540).

140108048 is an abundant number, since it is smaller than the sum of its proper divisors (148337032).

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

140108048 is a wasteful number, since it uses less digits than its factorization.

140108048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8235 (or 8229 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 26.

The square root of 140108048 is about 11836.7245469344. The cubic root of 140108048 is about 519.3829564550.

Adding to 140108048 its reverse (840801041), we get a palindrome (980909089).

The spelling of 140108048 in words is "one hundred forty million, one hundred eight thousand, forty-eight".

Divisors: 1 2 4 8 16 29 37 58 74 116 148 232 296 464 592 1073 2146 4292 8161 8584 16322 17168 32644 65288 130576 236669 301957 473338 603914 946676 1207828 1893352 2415656 3786704 4831312 8756753 17513506 35027012 70054024 140108048