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487157933089 = 6979672
BaseRepresentation
bin1110001011011001110…
…00000010010000100001
31201120102212121010020201
413011230320002100201
530440144412324324
61011444113105201
750124141052132
oct7055470022041
91646385533221
10487157933089
11178669a53563
127a4b8258201
1336c286c4b09
1419815849c89
15ca134cb444
hex716ce02421

487157933089 has 3 divisors (see below), whose sum is σ = 487158631057. Its totient is φ = 487157235122.

The previous prime is 487157933083. The next prime is 487157933167. The reversal of 487157933089 is 980339751784.

The square root of 487157933089 is 697967.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 487157933089 - 23 = 487157933081 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 487157933089.

It is not an unprimeable number, because it can be changed into a prime (487157933081) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 348984 + ... + 1046950.

Almost surely, 2487157933089 is an apocalyptic number.

487157933089 is the 697967-th square number.

487157933089 is the 348984-th centered octagonal number.

It is an amenable number.

487157933089 is a deficient number, since it is larger than the sum of its proper divisors (697968).

487157933089 is an frugal number, since it uses more digits than its factorization.

487157933089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1395934 (or 697967 counting only the distinct ones).

The product of its (nonzero) digits is 45722880, while the sum is 64.

Multiplying 487157933089 by its sum of digits (64), we get a square (31178107717696 = 55837362).

The spelling of 487157933089 in words is "four hundred eighty-seven billion, one hundred fifty-seven million, nine hundred thirty-three thousand, eighty-nine".

Divisors: 1 697967 487157933089