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20030722145 = 57572306347
BaseRepresentation
bin10010101001111011…
…001001000001100001
31220200222100010002222
4102221323021001201
5312010331102040
613111343520425
71306244220560
oct225173110141
956628303088
1020030722145
118549903025
123a702b9115
131b72b73515
14d80401bd7
157c37d8bb5
hex4a9ec9061

20030722145 has 8 divisors (see below), whose sum is σ = 27470704704. Its totient is φ = 13735352304.

The previous prime is 20030722093. The next prime is 20030722157. The reversal of 20030722145 is 54122703002.

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

It is a cyclic number.

It is not a de Polignac number, because 20030722145 - 222 = 20026527841 is a prime.

It is a Duffinian 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, 286153139 + ... + 286153208.

It is an arithmetic number, because the mean of its divisors is an integer number (3433838088).

Almost surely, 220030722145 is an apocalyptic number.

It is an amenable number.

20030722145 is a deficient number, since it is larger than the sum of its proper divisors (7439982559).

20030722145 is an equidigital number, since it uses as much as digits as its factorization.

20030722145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 572306359.

The product of its (nonzero) digits is 3360, while the sum is 26.

The spelling of 20030722145 in words is "twenty billion, thirty million, seven hundred twenty-two thousand, one hundred forty-five".

Divisors: 1 5 7 35 572306347 2861531735 4006144429 20030722145