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2028623971 = 11201791433
BaseRepresentation
bin111100011101010…
…0101100001100011
312020101012202221011
41320322211201203
513123311431341
6533144241351
7101162006413
oct17072454143
95211182834
102028623971
11951118240
12487470257
13264389c1a
141535ca643
15bd168b81
hex78ea5863

2028623971 has 8 divisors (see below), whose sum is σ = 2214165744. Its totient is φ = 1843269120.

The previous prime is 2028623951. The next prime is 2028624001. The reversal of 2028623971 is 1793268202.

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

It is not a de Polignac number, because 2028623971 - 29 = 2028623459 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2028623951) 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, 23530 + ... + 67903.

It is an arithmetic number, because the mean of its divisors is an integer number (276770718).

Almost surely, 22028623971 is an apocalyptic number.

2028623971 is a deficient number, since it is larger than the sum of its proper divisors (185541773).

2028623971 is a wasteful number, since it uses less digits than its factorization.

2028623971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93461.

The product of its (nonzero) digits is 72576, while the sum is 40.

The square root of 2028623971 is about 45040.2483452301. The cubic root of 2028623971 is about 1265.9032581910.

The spelling of 2028623971 in words is "two billion, twenty-eight million, six hundred twenty-three thousand, nine hundred seventy-one".

Divisors: 1 11 2017 22187 91433 1005763 184420361 2028623971