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140711148 = 223323371531
BaseRepresentation
bin10000110001100…
…01010011101100
3100210202212102000
420120301103230
5242010224043
621543532300
73326011404
oct1030612354
9323685360
10140711148
1172478406
123b15a090
13231c8c46
141498b804
15c5472d3
hex86314ec

140711148 has 96 divisors (see below), whose sum is σ = 391211520. Its totient is φ = 43623360.

The previous prime is 140711143. The next prime is 140711149. The reversal of 140711148 is 841117041.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140711141) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 91143 + ... + 92673.

It is an arithmetic number, because the mean of its divisors is an integer number (4075120).

Almost surely, 2140711148 is an apocalyptic number.

140711148 is a gapful number since it is divisible by the number (18) 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 140711148, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (195605760).

140711148 is an abundant number, since it is smaller than the sum of its proper divisors (250500372).

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

140711148 is a wasteful number, since it uses less digits than its factorization.

140711148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1604 (or 1596 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 27.

The square root of 140711148 is about 11862.1729881165. The cubic root of 140711148 is about 520.1271237520.

Adding to 140711148 its reverse (841117041), we get a palindrome (981828189).

The spelling of 140711148 in words is "one hundred forty million, seven hundred eleven thousand, one hundred forty-eight".

Divisors: 1 2 3 4 6 9 12 18 23 27 36 37 46 54 69 74 92 108 111 138 148 207 222 276 333 414 444 621 666 828 851 999 1242 1332 1531 1702 1998 2484 2553 3062 3404 3996 4593 5106 6124 7659 9186 10212 13779 15318 18372 22977 27558 30636 35213 41337 45954 55116 56647 70426 82674 91908 105639 113294 140852 165348 169941 211278 226588 316917 339882 422556 509823 633834 679764 950751 1019646 1267668 1302881 1529469 1901502 2039292 2605762 3058938 3803004 3908643 5211524 6117876 7817286 11725929 15634572 23451858 35177787 46903716 70355574 140711148