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1242560934 = 232491140593
BaseRepresentation
bin100101000001111…
…1111100110100110
310012121002122011100
41022003333212212
510021043422214
6323144220530
742535410426
oct11203774646
93177078140
101242560934
1158843646a
122a816a746
1316a576874
14bb04c486
1574146309
hex4a0ff9a6

1242560934 has 24 divisors (see below), whose sum is σ = 2697717672. Its totient is φ = 413340480.

The previous prime is 1242560929. The next prime is 1242560939. The reversal of 1242560934 is 4390652421.

It is a happy number.

1242560934 is a `hidden beast` number, since 1 + 2 + 4 + 2 + 560 + 93 + 4 = 666.

It is an interprime number because it is at equal distance from previous prime (1242560929) and next prime (1242560939).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1242560939) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 61459 + ... + 79134.

It is an arithmetic number, because the mean of its divisors is an integer number (112404903).

Almost surely, 21242560934 is an apocalyptic number.

1242560934 is an abundant number, since it is smaller than the sum of its proper divisors (1455156738).

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

1242560934 is a wasteful number, since it uses less digits than its factorization.

1242560934 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141092 (or 141089 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The square root of 1242560934 is about 35249.9777872270. The cubic root of 1242560934 is about 1075.0761608922.

The spelling of 1242560934 in words is "one billion, two hundred forty-two million, five hundred sixty thousand, nine hundred thirty-four".

Divisors: 1 2 3 6 9 18 491 982 1473 2946 4419 8838 140593 281186 421779 843558 1265337 2530674 69031163 138062326 207093489 414186978 621280467 1242560934