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1321471076 = 221705319373
BaseRepresentation
bin100111011000100…
…0000110001100100
310102002120200112012
41032301000301210
510201244033301
6335043413352
744514214232
oct11661006144
93362520465
101321471076
11618a32862
1230a684258
13180a14b63
14c770d952
157b031ebb
hex4ec40c64

1321471076 has 12 divisors (see below), whose sum is σ = 2312829372. Its totient is φ = 660662688.

The previous prime is 1321471057. The next prime is 1321471093. The reversal of 1321471076 is 6701741231.

It can be written as a sum of positive squares in 2 ways, for example, as 431642176 + 889828900 = 20776^2 + 29830^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58526 + ... + 77898.

It is an arithmetic number, because the mean of its divisors is an integer number (192735781).

Almost surely, 21321471076 is an apocalyptic number.

It is an amenable number.

1321471076 is a deficient number, since it is larger than the sum of its proper divisors (991358296).

1321471076 is a wasteful number, since it uses less digits than its factorization.

1321471076 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36430 (or 36428 counting only the distinct ones).

The product of its (nonzero) digits is 7056, while the sum is 32.

The square root of 1321471076 is about 36352.0436289351. The cubic root of 1321471076 is about 1097.3686625974.

The spelling of 1321471076 in words is "one billion, three hundred twenty-one million, four hundred seventy-one thousand, seventy-six".

Divisors: 1 2 4 17053 19373 34106 38746 68212 77492 330367769 660735538 1321471076