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3891201013 = 72551217909
BaseRepresentation
bin1110011111101111…
…0000001111110101
3101001011222111022001
43213323300033311
530432121413023
61442041535301
7165266443240
oct34773601765
911034874261
103891201013
111717532a07
129071a4531
134a0219c0b
1428cb12257
1517b9336ad
hexe7ef03f5

3891201013 has 8 divisors (see below), whose sum is σ = 4448850560. Its totient is φ = 3333992400.

The previous prime is 3891201001. The next prime is 3891201029. The reversal of 3891201013 is 3101021983.

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 3891201013 - 29 = 3891200501 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3891201073) 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, 91098 + ... + 126811.

It is an arithmetic number, because the mean of its divisors is an integer number (556106320).

Almost surely, 23891201013 is an apocalyptic number.

It is an amenable number.

3891201013 is a deficient number, since it is larger than the sum of its proper divisors (557649547).

3891201013 is a wasteful number, since it uses less digits than its factorization.

3891201013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220467.

The product of its (nonzero) digits is 1296, while the sum is 28.

The square root of 3891201013 is about 62379.4919264336. The cubic root of 3891201013 is about 1572.8762524760.

Adding to 3891201013 its reverse (3101021983), we get a palindrome (6992222996).

The spelling of 3891201013 in words is "three billion, eight hundred ninety-one million, two hundred one thousand, thirteen".

Divisors: 1 7 2551 17857 217909 1525363 555885859 3891201013