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1242108544 = 2712317883
BaseRepresentation
bin100101000001001…
…0001001010000000
310012120020122121011
41022002101022000
510020434433134
6323130410304
742531514465
oct11202211200
93176218534
101242108544
11588157596
122a7b90994
1316a448991
14bad7166c
15740a7264
hex4a091280

1242108544 has 32 divisors (see below), whose sum is σ = 2476837440. Its totient is φ = 620471040.

The previous prime is 1242108503. The next prime is 1242108607. The reversal of 1242108544 is 4458012421.

It is a tau number, because it is divible by the number of its divisors (32).

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, 153627 + ... + 161509.

It is an arithmetic number, because the mean of its divisors is an integer number (77401170).

Almost surely, 21242108544 is an apocalyptic number.

It is an amenable number.

1242108544 is a deficient number, since it is larger than the sum of its proper divisors (1234728896).

1242108544 is an equidigital number, since it uses as much as digits as its factorization.

1242108544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9128 (or 9116 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 31.

The square root of 1242108544 is about 35243.5603195818. The cubic root of 1242108544 is about 1074.9456742693.

The spelling of 1242108544 in words is "one billion, two hundred forty-two million, one hundred eight thousand, five hundred forty-four".

Divisors: 1 2 4 8 16 32 64 128 1231 2462 4924 7883 9848 15766 19696 31532 39392 63064 78784 126128 157568 252256 504512 1009024 9703973 19407946 38815892 77631784 155263568 310527136 621054272 1242108544