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125802668747 = 7452395947
BaseRepresentation
bin111010100101001101…
…1000110001011001011
3110000201101220201120202
41311022123012023023
54030120440344442
6133443135442415
712042336020000
oct1651233061313
9400641821522
10125802668747
1149397366028
122046b08640b
13bb2b421782
146135c698a7
15341460ec32
hex1d4a6c62cb

125802668747 has 10 divisors (see below), whose sum is σ = 146761050348. Its totient is φ = 107830856868.

The previous prime is 125802668731. The next prime is 125802668753. The reversal of 125802668747 is 747866208521.

It is not a de Polignac number, because 125802668747 - 24 = 125802668731 is a prime.

It is a super-2 number, since 2×1258026687472 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 125802668692 and 125802668701.

It is not an unprimeable number, because it can be changed into a prime (125802668647) 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 9 ways as a sum of consecutive naturals, for example, 26195573 + ... + 26200374.

Almost surely, 2125802668747 is an apocalyptic number.

125802668747 is a deficient number, since it is larger than the sum of its proper divisors (20958381601).

125802668747 is an frugal number, since it uses more digits than its factorization.

125802668747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52395975 (or 52395954 counting only the distinct ones).

The product of its (nonzero) digits is 9031680, while the sum is 56.

The spelling of 125802668747 in words is "one hundred twenty-five billion, eight hundred two million, six hundred sixty-eight thousand, seven hundred forty-seven".

Divisors: 1 7 49 343 2401 52395947 366771629 2567401403 17971809821 125802668747