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1311057088 = 26111862297
BaseRepresentation
bin100111000100101…
…0010010011000000
310101100222121012221
41032021102103000
510141112311323
6334032300424
744326541605
oct11611222300
93340877187
101311057088
1161306a660
123070a1714
1317b809a33
14c619c6ac
157a17655d
hex4e2524c0

1311057088 has 28 divisors (see below), whose sum is σ = 2838142152. Its totient is φ = 595934720.

The previous prime is 1311057073. The next prime is 1311057089. The reversal of 1311057088 is 8807501131.

It is not an unprimeable number, because it can be changed into a prime (1311057089) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 930445 + ... + 931852.

Almost surely, 21311057088 is an apocalyptic number.

It is an amenable number.

1311057088 is an abundant number, since it is smaller than the sum of its proper divisors (1527085064).

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

1311057088 is a wasteful number, since it uses less digits than its factorization.

1311057088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1862320 (or 1862310 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 34.

The square root of 1311057088 is about 36208.5223117431. The cubic root of 1311057088 is about 1094.4784149495.

The spelling of 1311057088 in words is "one billion, three hundred eleven million, fifty-seven thousand, eighty-eight".

Divisors: 1 2 4 8 11 16 22 32 44 64 88 176 352 704 1862297 3724594 7449188 14898376 20485267 29796752 40970534 59593504 81941068 119187008 163882136 327764272 655528544 1311057088