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140148952 = 23171975231
BaseRepresentation
bin10000101101010…
…00000011011000
3100202201022012221
420112220003120
5241334231302
621523513424
73321150346
oct1026500330
9322638187
10140148952
1172123a89
123ab28874
1323060098
1414882996
15c485937
hex85a80d8

140148952 has 32 divisors (see below), whose sum is σ = 279702720. Its totient is φ = 65605120.

The previous prime is 140148949. The next prime is 140148961. The reversal of 140148952 is 259841041.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (34).

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, 24177 + ... + 29407.

It is an arithmetic number, because the mean of its divisors is an integer number (8740710).

Almost surely, 2140148952 is an apocalyptic number.

It is an amenable number.

140148952 is a deficient number, since it is larger than the sum of its proper divisors (139553768).

140148952 is a wasteful number, since it uses less digits than its factorization.

140148952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5451 (or 5447 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 34.

The square root of 140148952 is about 11838.4522637041. The cubic root of 140148952 is about 519.4334954821.

Adding to 140148952 its reverse (259841041), we get a palindrome (399989993).

The spelling of 140148952 in words is "one hundred forty million, one hundred forty-eight thousand, nine hundred fifty-two".

Divisors: 1 2 4 8 17 34 68 136 197 394 788 1576 3349 5231 6698 10462 13396 20924 26792 41848 88927 177854 355708 711416 1030507 2061014 4122028 8244056 17518619 35037238 70074476 140148952