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4663978492 = 221768587919
BaseRepresentation
bin1000101011111111…
…01010100111111100
3110001001002122201011
410111333222213330
534022434302432
62050445125004
7223402106635
oct42577524774
913031078634
104663978492
111a83770088
12aa1b59764
1359435b0b4
143235d288c
151c46ce847
hex115fea9fc

4663978492 has 12 divisors (see below), whose sum is σ = 8642077920. Its totient is φ = 2194813376.

The previous prime is 4663978477. The next prime is 4663978499. The reversal of 4663978492 is 2948793664.

It is a happy number.

It is a super-3 number, since 3×46639784923 (a number of 30 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4663978499) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34293892 + ... + 34294027.

It is an arithmetic number, because the mean of its divisors is an integer number (720173160).

Almost surely, 24663978492 is an apocalyptic number.

It is an amenable number.

4663978492 is a deficient number, since it is larger than the sum of its proper divisors (3978099428).

4663978492 is a wasteful number, since it uses less digits than its factorization.

4663978492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68587940 (or 68587938 counting only the distinct ones).

The product of its digits is 15676416, while the sum is 58.

The square root of 4663978492 is about 68293.3268482361. The cubic root of 4663978492 is about 1670.7783781069.

The spelling of 4663978492 in words is "four billion, six hundred sixty-three million, nine hundred seventy-eight thousand, four hundred ninety-two".

Divisors: 1 2 4 17 34 68 68587919 137175838 274351676 1165994623 2331989246 4663978492