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140640111524 = 221143543113687
BaseRepresentation
bin1000001011111011001…
…1011100101110100100
3111110000110011220200102
42002332303130232210
54301012332032044
6144335325403232
713106123136443
oct2027663345644
9443013156612
10140640111524
1154710749430
1223310109518
1310354393103
146b42656d5a
1539d201424e
hex20becdcba4

140640111524 has 48 divisors (see below), whose sum is σ = 274809486336. Its totient is φ = 62424583200.

The previous prime is 140640111523. The next prime is 140640111587. The reversal of 140640111524 is 425111046041.

It is not an unprimeable number, because it can be changed into a prime (140640111523) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10268609 + ... + 10282295.

It is an arithmetic number, because the mean of its divisors is an integer number (5725197632).

Almost surely, 2140640111524 is an apocalyptic number.

It is an amenable number.

140640111524 is a deficient number, since it is larger than the sum of its proper divisors (134169374812).

140640111524 is a wasteful number, since it uses less digits than its factorization.

140640111524 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19176 (or 19174 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 29.

Adding to 140640111524 its reverse (425111046041), we get a palindrome (565751157565).

The spelling of 140640111524 in words is "one hundred forty billion, six hundred forty million, one hundred eleven thousand, five hundred twenty-four".

Divisors: 1 2 4 11 22 43 44 86 172 473 946 1892 5431 10862 13687 21724 27374 54748 59741 119482 150557 233533 238964 301114 467066 588541 602228 934132 1177082 2354164 2568863 5137726 6473951 10275452 12947902 25895804 74334097 148668194 297336388 817675067 1635350134 3196366171 3270700268 6392732342 12785464684 35160027881 70320055762 140640111524