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4971307557 = 322343916927
BaseRepresentation
bin1001010000101000…
…00010001000100101
3110211110101120221010
410220110002020211
540140123320212
62141144212433
7234123263016
oct45024021045
913743346833
104971307557
11212119aa47
12b68a6a119
13612c23b08
1435235300d
151e168a03c
hex128502225

4971307557 has 16 divisors (see below), whose sum is σ = 6673694720. Its totient is φ = 3291633072.

The previous prime is 4971307553. The next prime is 4971307559. The reversal of 4971307557 is 7557031794.

It is not a de Polignac number, because 4971307557 - 22 = 4971307553 is a prime.

It is the 70508-th Hogben number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4971307553) by changing a digit.

It is a nontrivial repunit in base 70507.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 285228 + ... + 302154.

It is an arithmetic number, because the mean of its divisors is an integer number (417105920).

Almost surely, 24971307557 is an apocalyptic number.

It is an amenable number.

4971307557 is a deficient number, since it is larger than the sum of its proper divisors (1702387163).

4971307557 is a wasteful number, since it uses less digits than its factorization.

4971307557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17592.

The product of its (nonzero) digits is 926100, while the sum is 48.

The square root of 4971307557 is about 70507.5000053186. The cubic root of 4971307557 is about 1706.6987775017.

The spelling of 4971307557 in words is "four billion, nine hundred seventy-one million, three hundred seven thousand, five hundred fifty-seven".

Divisors: 1 3 223 439 669 1317 16927 50781 97897 293691 3774721 7430953 11324163 22292859 1657102519 4971307557