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385453913 = 13103287867
BaseRepresentation
bin10110111110011…
…000111101011001
3222212022002100212
4112332120331121
51242134011123
6102125340505
712360206225
oct2676307531
9885262325
10385453913
11188640259
12a9107735
1361b1a750
1439299785
1523c8d878
hex16f98f59

385453913 has 8 divisors (see below), whose sum is σ = 419135808. Its totient is φ = 352347984.

The previous prime is 385453897. The next prime is 385453919. The reversal of 385453913 is 319354583.

It is a happy number.

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 385453913 - 24 = 385453897 is a prime.

It is not an unprimeable number, because it can be changed into a prime (385453919) 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, 142595 + ... + 145272.

It is an arithmetic number, because the mean of its divisors is an integer number (52391976).

Almost surely, 2385453913 is an apocalyptic number.

It is an amenable number.

385453913 is a deficient number, since it is larger than the sum of its proper divisors (33681895).

385453913 is a wasteful number, since it uses less digits than its factorization.

385453913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 287983.

The product of its digits is 194400, while the sum is 41.

The square root of 385453913 is about 19632.9802373455. The cubic root of 385453913 is about 727.7644204391.

The spelling of 385453913 in words is "three hundred eighty-five million, four hundred fifty-three thousand, nine hundred thirteen".

Divisors: 1 13 103 1339 287867 3742271 29650301 385453913