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140031452 = 221123138371
BaseRepresentation
bin10000101100010…
…11010111011100
3100202111100001002
420112023113130
5241322001302
621521205432
73320150651
oct1026132734
9322440032
10140031452
1172053780
123aa90878
132301b762
1414851c28
15c460c02
hex858b5dc

140031452 has 24 divisors (see below), whose sum is σ = 278957952. Its totient is φ = 60882800.

The previous prime is 140031427. The next prime is 140031461. The reversal of 140031452 is 254130041.

140031452 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68174 + ... + 70197.

It is an arithmetic number, because the mean of its divisors is an integer number (11623248).

Almost surely, 2140031452 is an apocalyptic number.

It is an amenable number.

140031452 is a deficient number, since it is larger than the sum of its proper divisors (138926500).

140031452 is a wasteful number, since it uses less digits than its factorization.

140031452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138409 (or 138407 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 140031452 is about 11833.4885811412. The cubic root of 140031452 is about 519.2882916366.

Adding to 140031452 its reverse (254130041), we get a palindrome (394161493).

The spelling of 140031452 in words is "one hundred forty million, thirty-one thousand, four hundred fifty-two".

Divisors: 1 2 4 11 22 23 44 46 92 253 506 1012 138371 276742 553484 1522081 3044162 3182533 6088324 6365066 12730132 35007863 70015726 140031452