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6890052042 = 2321929716781
BaseRepresentation
bin1100110101010110…
…11101100111001010
3122210011211220112200
412122223131213022
5103102323131132
63055405421030
7332512322166
oct63253354712
918704756480
106890052042
112a16289095
12140356a776
1385a5bb493
144950d9ca6
152a4d4bd7c
hex19aadd9ca

6890052042 has 48 divisors (see below), whose sum is σ = 15721761120. Its totient is φ = 2174752800.

The previous prime is 6890052031. The next prime is 6890052049. The reversal of 6890052042 is 2402500986.

It is a happy number.

6890052042 is a `hidden beast` number, since 6 + 8 + 90 + 0 + 520 + 42 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 6890051988 and 6890052006.

It is not an unprimeable number, because it can be changed into a prime (6890052049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1012692 + ... + 1019472.

It is an arithmetic number, because the mean of its divisors is an integer number (327536690).

Almost surely, 26890052042 is an apocalyptic number.

6890052042 is an abundant number, since it is smaller than the sum of its proper divisors (8831709078).

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

6890052042 is a wasteful number, since it uses less digits than its factorization.

6890052042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9779 (or 9776 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 6890052042 is about 83006.3373604690. The cubic root of 6890052042 is about 1902.8629085813.

The spelling of 6890052042 in words is "six billion, eight hundred ninety million, fifty-two thousand, forty-two".

Divisors: 1 2 3 6 9 18 19 38 57 114 171 342 2971 5942 6781 8913 13562 17826 20343 26739 40686 53478 56449 61029 112898 122058 128839 169347 257678 338694 386517 508041 773034 1016082 1159551 2319102 20146351 40292702 60439053 120878106 181317159 362634318 382780669 765561338 1148342007 2296684014 3445026021 6890052042