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1311241434 = 231571139109
BaseRepresentation
bin100111000100111…
…1111010011011010
310101101022222002120
41032021333103122
510141134211214
6334040242110
744331240216
oct11611772332
93341288076
101311241434
11613186108
12307170336
1317b872909
14c6209946
157a1b0ea9
hex4e27f4da

1311241434 has 16 divisors (see below), whose sum is σ = 2624171040. Its totient is φ = 436799120.

The previous prime is 1311241427. The next prime is 1311241453. The reversal of 1311241434 is 4341421131.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60129 + ... + 78980.

It is an arithmetic number, because the mean of its divisors is an integer number (164010690).

Almost surely, 21311241434 is an apocalyptic number.

1311241434 is an abundant number, since it is smaller than the sum of its proper divisors (1312929606).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1311241434 is a wasteful number, since it uses less digits than its factorization.

1311241434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140685.

The product of its digits is 1152, while the sum is 24.

The square root of 1311241434 is about 36211.0678384386. The cubic root of 1311241434 is about 1094.5297102653.

Adding to 1311241434 its reverse (4341421131), we get a palindrome (5652662565).

The spelling of 1311241434 in words is "one billion, three hundred eleven million, two hundred forty-one thousand, four hundred thirty-four".

Divisors: 1 2 3 6 1571 3142 4713 9426 139109 278218 417327 834654 218540239 437080478 655620717 1311241434