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1352440705 = 57117348121
BaseRepresentation
bin101000010011100…
…1001101110000001
310111020212002212111
41100213021232001
510232211100310
6342111255321
745341361550
oct12047115601
93436762774
101352440705
116344657a0
12318b1a541
13187269295
14cb891d97
157daed28a
hex509c9b81

1352440705 has 32 divisors (see below), whose sum is σ = 2051152128. Its totient is φ = 831513600.

The previous prime is 1352440703. The next prime is 1352440721. The reversal of 1352440705 is 5070442531.

It is not a de Polignac number, because 1352440705 - 21 = 1352440703 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1352440703) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4045 + ... + 52165.

It is an arithmetic number, because the mean of its divisors is an integer number (64098504).

Almost surely, 21352440705 is an apocalyptic number.

It is an amenable number.

1352440705 is a deficient number, since it is larger than the sum of its proper divisors (698711423).

1352440705 is a wasteful number, since it uses less digits than its factorization.

1352440705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48217.

The product of its (nonzero) digits is 16800, while the sum is 31.

The square root of 1352440705 is about 36775.5449313807. The cubic root of 1352440705 is about 1105.8750955764.

The spelling of 1352440705 in words is "one billion, three hundred fifty-two million, four hundred forty thousand, seven hundred five".

Divisors: 1 5 7 11 35 55 73 77 365 385 511 803 2555 4015 5621 28105 48121 240605 336847 529331 1684235 2646655 3512833 3705317 17564165 18526585 24589831 38641163 122949155 193205815 270488141 1352440705