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4718990491 = 47123181563
BaseRepresentation
bin1000110010100011…
…00001010010011011
3110011212121112222121
410121101201102123
534131030143431
62100132202111
7224640520525
oct43121412233
913155545877
104718990491
112001824446
12ab8469337
135a287c887
1432aa32a15
151c9449611
hex11946149b

4718990491 has 8 divisors (see below), whose sum is σ = 4823368704. Its totient is φ = 4614777960.

The previous prime is 4718990483. The next prime is 4718990557. The reversal of 4718990491 is 1940998174.

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 4718990491 - 23 = 4718990483 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4718990791) 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, 17076 + ... + 98638.

It is an arithmetic number, because the mean of its divisors is an integer number (602921088).

Almost surely, 24718990491 is an apocalyptic number.

4718990491 is a deficient number, since it is larger than the sum of its proper divisors (104378213).

4718990491 is a wasteful number, since it uses less digits than its factorization.

4718990491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82841.

The product of its (nonzero) digits is 653184, while the sum is 52.

The square root of 4718990491 is about 68694.9087705923. The cubic root of 4718990491 is about 1677.3217069413.

The spelling of 4718990491 in words is "four billion, seven hundred eighteen million, nine hundred ninety thousand, four hundred ninety-one".

Divisors: 1 47 1231 57857 81563 3833461 100404053 4718990491