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140752423 = 7125915971
BaseRepresentation
bin10000110001110…
…11011000100111
3100210211222000201
420120323120213
5242013034143
621544451331
73326242630
oct1030733047
9323758021
10140752423
11724a6419
123b179b47
1323211976
141499c887
15c55464d
hex863b627

140752423 has 8 divisors (see below), whose sum is σ = 160997760. Its totient is φ = 120541560.

The previous prime is 140752393. The next prime is 140752427. The reversal of 140752423 is 324257041.

140752423 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-140752423 is a prime.

It is a super-2 number, since 2×1407524232 = 39622489160741858, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 140752391 and 140752400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140752427) 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, 828 + ... + 16798.

It is an arithmetic number, because the mean of its divisors is an integer number (20124720).

Almost surely, 2140752423 is an apocalyptic number.

140752423 is a deficient number, since it is larger than the sum of its proper divisors (20245337).

140752423 is a wasteful number, since it uses less digits than its factorization.

140752423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17237.

The product of its (nonzero) digits is 6720, while the sum is 28.

The square root of 140752423 is about 11863.9126345401. The cubic root of 140752423 is about 520.1779753218.

The spelling of 140752423 in words is "one hundred forty million, seven hundred fifty-two thousand, four hundred twenty-three".

Divisors: 1 7 1259 8813 15971 111797 20107489 140752423