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29081346690 = 2351188125293
BaseRepresentation
bin11011000101011000…
…100010001010000010
32210001201200110221110
4123011120202022002
5434024311043230
621205414104150
72046443240214
oct330530421202
983051613843
1029081346690
1111373731220
12577734b056
132985c6a266
14159c4345b4
15b531654b0
hex6c5622282

29081346690 has 32 divisors (see below), whose sum is σ = 76140254016. Its totient is φ = 7050023360.

The previous prime is 29081346683. The next prime is 29081346713. The reversal of 29081346690 is 9664318092.

It is a super-2 number, since 2×290813466902 (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44062317 + ... + 44062976.

It is an arithmetic number, because the mean of its divisors is an integer number (2379382938).

Almost surely, 229081346690 is an apocalyptic number.

29081346690 is an abundant number, since it is smaller than the sum of its proper divisors (47058907326).

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

29081346690 is a wasteful number, since it uses less digits than its factorization.

29081346690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88125314.

The product of its (nonzero) digits is 559872, while the sum is 48.

The spelling of 29081346690 in words is "twenty-nine billion, eighty-one million, three hundred forty-six thousand, six hundred ninety".

Divisors: 1 2 3 5 6 10 11 15 22 30 33 55 66 110 165 330 88125293 176250586 264375879 440626465 528751758 881252930 969378223 1321879395 1938756446 2643758790 2908134669 4846891115 5816269338 9693782230 14540673345 29081346690