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487971207 = 32379715107
BaseRepresentation
bin11101000101011…
…101100110000111
31021000012111122200
4131011131212013
51444410034312
6120230525543
715043454403
oct3505354607
91230174580
10487971207
112304a0a99
121175068b3
137a132c79
1448b44103
152cc8e0dc
hex1d15d987

487971207 has 24 divisors (see below), whose sum is σ = 731408496. Its totient is φ = 313238016.

The previous prime is 487971203. The next prime is 487971221. The reversal of 487971207 is 702179784.

It is a happy number.

It is not a de Polignac number, because 487971207 - 22 = 487971203 is a prime.

It is a super-2 number, since 2×4879712072 = 476231797722073698, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (487971203) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 24748 + ... + 39854.

It is an arithmetic number, because the mean of its divisors is an integer number (30475354).

Almost surely, 2487971207 is an apocalyptic number.

487971207 is a deficient number, since it is larger than the sum of its proper divisors (243437289).

487971207 is a wasteful number, since it uses less digits than its factorization.

487971207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15247 (or 15244 counting only the distinct ones).

The product of its (nonzero) digits is 197568, while the sum is 45.

The square root of 487971207 is about 22090.0703258274. The cubic root of 487971207 is about 787.2839522225.

The spelling of 487971207 in words is "four hundred eighty-seven million, nine hundred seventy-one thousand, two hundred seven".

Divisors: 1 3 9 37 97 111 291 333 873 3589 10767 15107 32301 45321 135963 558959 1465379 1676877 4396137 5030631 13188411 54219023 162657069 487971207