Search a number
-
+
1428520677 = 33831243273
BaseRepresentation
bin101010100100101…
…0111111011100101
310200120000100222020
41111021113323211
510411200130202
6353430053353
750254140213
oct12511277345
93616010866
101428520677
116733a9801
1233a4aa259
13199c5630c
14d7a17cb3
158562a5bc
hex55257ee5

1428520677 has 8 divisors (see below), whose sum is σ = 1909668864. Its totient is φ = 949859808.

The previous prime is 1428520651. The next prime is 1428520697. The reversal of 1428520677 is 7760258241.

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

It is not a de Polignac number, because 1428520677 - 215 = 1428487909 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1428520627) 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, 620488 + ... + 622785.

It is an arithmetic number, because the mean of its divisors is an integer number (238708608).

Almost surely, 21428520677 is an apocalyptic number.

It is an amenable number.

1428520677 is a deficient number, since it is larger than the sum of its proper divisors (481148187).

1428520677 is a wasteful number, since it uses less digits than its factorization.

1428520677 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1243659.

The product of its (nonzero) digits is 188160, while the sum is 42.

The square root of 1428520677 is about 37795.7759147765. The cubic root of 1428520677 is about 1126.2345432207.

The spelling of 1428520677 in words is "one billion, four hundred twenty-eight million, five hundred twenty thousand, six hundred seventy-seven".

Divisors: 1 3 383 1149 1243273 3729819 476173559 1428520677