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4998172997 = 29315559703
BaseRepresentation
bin1001010011110101…
…00001000101000101
3110220022221111101102
410221322201011011
540214013013442
62143544105445
7234600524636
oct45172410505
913808844342
104998172997
11213537a394
12b75a65285
1361866c11c
14355b4788d
151e3be5232
hex129ea1145

4998172997 has 8 divisors (see below), whose sum is σ = 5337315840. Its totient is φ = 4670149680.

The previous prime is 4998172969. The next prime is 4998173057. The reversal of 4998172997 is 7992718994.

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

It is a cyclic number.

It is not a de Polignac number, because 4998172997 - 28 = 4998172741 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4998102997) 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, 2778953 + ... + 2780750.

It is an arithmetic number, because the mean of its divisors is an integer number (667164480).

Almost surely, 24998172997 is an apocalyptic number.

It is an amenable number.

4998172997 is a deficient number, since it is larger than the sum of its proper divisors (339142843).

4998172997 is a wasteful number, since it uses less digits than its factorization.

4998172997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5559763.

The product of its digits is 20575296, while the sum is 65.

The square root of 4998172997 is about 70697.7580761936. The cubic root of 4998172997 is about 1709.7676458913.

The spelling of 4998172997 in words is "four billion, nine hundred ninety-eight million, one hundred seventy-two thousand, nine hundred ninety-seven".

Divisors: 1 29 31 899 5559703 161231387 172350793 4998172997