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30019686957486 = 23213112730995317
BaseRepresentation
bin1101101001101100000001…
…10001110000000110101110
310221021212001121011211010200
412310312000301300012232
512413320304330114421
6143502504231014330
76215564553642552
oct664660061600656
9127255047154120
1030019686957486
119624306748656
12344a02450a3a6
131399ac9000715
1475ad63c65862
15370d3330b726
hex1b4d80c701ae

30019686957486 has 24 divisors (see below), whose sum is σ = 65539163897064. Its totient is φ = 9930176346480.

The previous prime is 30019686957451. The next prime is 30019686957493. The reversal of 30019686957486 is 68475968691003.

30019686957486 is a `hidden beast` number, since 3 + 0 + 0 + 1 + 96 + 8 + 6 + 9 + 57 + 486 = 666.

It is a super-3 number, since 3×300196869574863 (a number of 41 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6365495301 + ... + 6365500016.

It is an arithmetic number, because the mean of its divisors is an integer number (2730798495711).

Almost surely, 230019686957486 is an apocalyptic number.

30019686957486 is an abundant number, since it is smaller than the sum of its proper divisors (35519476939578).

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

30019686957486 is a wasteful number, since it uses less digits than its factorization.

30019686957486 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12730995456 (or 12730995453 counting only the distinct ones).

The product of its (nonzero) digits is 470292480, while the sum is 72.

The spelling of 30019686957486 in words is "thirty trillion, nineteen billion, six hundred eighty-six million, nine hundred fifty-seven thousand, four hundred eighty-six".

Divisors: 1 2 3 6 9 18 131 262 393 786 1179 2358 12730995317 25461990634 38192985951 76385971902 114578957853 229157915706 1667760386527 3335520773054 5003281159581 10006562319162 15009843478743 30019686957486