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30005020690865 = 5111087501882089
BaseRepresentation
bin1101101001010000101101…
…00110011000100110110001
310221020110012111000021120122
412310220112212120212301
512413100240244101430
6143452041034020025
76214535245511003
oct664502646304661
9127213174007518
1030005020690865
11961906aa50450
123447210877615
1313985cc66384c
1475a3720b6373
1537077596aee5
hex1b4a169989b1

30005020690865 has 16 divisors (see below), whose sum is σ = 39315435402240. Its totient is φ = 21801757902720.

The previous prime is 30005020690849. The next prime is 30005020690867. The reversal of 30005020690865 is 56809602050003.

It is a happy number.

It is not a de Polignac number, because 30005020690865 - 24 = 30005020690849 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30005020690867) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 250881260 + ... + 251000829.

It is an arithmetic number, because the mean of its divisors is an integer number (2457214712640).

Almost surely, 230005020690865 is an apocalyptic number.

It is an amenable number.

30005020690865 is a deficient number, since it is larger than the sum of its proper divisors (9310414711375).

30005020690865 is a wasteful number, since it uses less digits than its factorization.

30005020690865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 501883192.

The product of its (nonzero) digits is 388800, while the sum is 44.

The spelling of 30005020690865 in words is "thirty trillion, five billion, twenty million, six hundred ninety thousand, eight hundred sixty-five".

Divisors: 1 5 11 55 1087 5435 11957 59785 501882089 2509410445 5520702979 27603514895 545545830743 2727729153715 6001004138173 30005020690865