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1304406213 = 3111012291709
BaseRepresentation
bin100110110111111…
…1010100011000101
310100220110200221020
41031233322203011
510132411444323
6333233541353
744216161365
oct11557724305
93326420836
101304406213
1160a337770
12304a14859
1317a31b6c6
14c534a9a5
15797b0ae3
hex4dbfa8c5

1304406213 has 32 divisors (see below), whose sum is σ = 1925596800. Its totient is φ = 778848000.

The previous prime is 1304406211. The next prime is 1304406217. The reversal of 1304406213 is 3126044031.

It is not a de Polignac number, because 1304406213 - 21 = 1304406211 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1304406211) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 762403 + ... + 764111.

It is an arithmetic number, because the mean of its divisors is an integer number (60174900).

Almost surely, 21304406213 is an apocalyptic number.

It is an amenable number.

1304406213 is a deficient number, since it is larger than the sum of its proper divisors (621190587).

1304406213 is a wasteful number, since it uses less digits than its factorization.

1304406213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2053.

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 1304406213 is about 36116.5642468937. The cubic root of 1304406213 is about 1092.6245462969.

The spelling of 1304406213 in words is "one billion, three hundred four million, four hundred six thousand, two hundred thirteen".

Divisors: 1 3 11 33 101 229 303 687 1111 1709 2519 3333 5127 7557 18799 23129 56397 69387 172609 254419 391361 517827 763257 1174083 1898699 4304971 5696097 12914913 39527461 118582383 434802071 1304406213