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634146413 = 19431097121
BaseRepresentation
bin100101110011000…
…100111001101101
31122012020222100012
4211303010321231
52244320141123
6142531543005
721500104235
oct4563047155
91565228305
10634146413
112a5a6064a
1215845aa65
13a14c2c84
1460314cc5
153aa15378
hex25cc4e6d

634146413 has 16 divisors (see below), whose sum is σ = 689409600. Its totient is φ = 581333760.

The previous prime is 634146397. The next prime is 634146421. The reversal of 634146413 is 314641436.

It is a cyclic number.

It is not a de Polignac number, because 634146413 - 24 = 634146397 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 634146413.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (634146473) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 85493 + ... + 92613.

It is an arithmetic number, because the mean of its divisors is an integer number (43088100).

Almost surely, 2634146413 is an apocalyptic number.

It is an amenable number.

634146413 is a deficient number, since it is larger than the sum of its proper divisors (55263187).

634146413 is a wasteful number, since it uses less digits than its factorization.

634146413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7292.

The product of its digits is 20736, while the sum is 32.

The square root of 634146413 is about 25182.2638577234. The cubic root of 634146413 is about 859.1384977462.

Adding to 634146413 its reverse (314641436), we get a palindrome (948787849).

The spelling of 634146413 in words is "six hundred thirty-four million, one hundred forty-six thousand, four hundred thirteen".

Divisors: 1 19 43 109 817 2071 4687 7121 89053 135299 306203 776189 5817857 14747591 33376127 634146413