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140020030 = 2514002003
BaseRepresentation
bin10000101100010…
…00100100111110
3100202110202101001
420112020210332
5241321120110
621521040514
73320102443
oct1026104476
9322422331
10140020030
1172046137
123aa8613a
13230164b7
141484b9ca
15c45c63a
hex858893e

140020030 has 8 divisors (see below), whose sum is σ = 252036072. Its totient is φ = 56008008.

The previous prime is 140019967. The next prime is 140020061. The reversal of 140020030 is 30020041.

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

It is a Harshad number since it is a multiple of its sum of digits (10), and also a Moran number because the ratio is a prime number: 14002003 = 140020030 / (1 + 4 + 0 + 0 + 2 + 0 + 0 + 3 + 0).

It is a junction number, because it is equal to n+sod(n) for n = 140019989 and 140020016.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7000992 + ... + 7001011.

It is an arithmetic number, because the mean of its divisors is an integer number (31504509).

Almost surely, 2140020030 is an apocalyptic number.

140020030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

140020030 is a deficient number, since it is larger than the sum of its proper divisors (112016042).

140020030 is a wasteful number, since it uses less digits than its factorization.

140020030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14002010.

The product of its (nonzero) digits is 24, while the sum is 10.

The square root of 140020030 is about 11833.0059579128. The cubic root of 140020030 is about 519.2741722559.

Adding to 140020030 its reverse (30020041), we get a palindrome (170040071).

The spelling of 140020030 in words is "one hundred forty million, twenty thousand, thirty".

Divisors: 1 2 5 10 14002003 28004006 70010015 140020030