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30045340045040 = 2456718130969469
BaseRepresentation
bin1101101010011011110011…
…10100100000111011110000
310221101022021101222200122112
412311031321310200323300
512414230324022420130
6143522345541424452
76220463351410355
oct665157164407360
9127338241880575
1030045340045040
1196341801a1a61
123452ba370b128
13139c35692c378
1475c2b8c5462c
153718354d6495
hex1b5379d20ef0

30045340045040 has 80 divisors (see below), whose sum is σ = 71289737893920. Its totient is φ = 11773352954880.

The previous prime is 30045340045027. The next prime is 30045340045043. The reversal of 30045340045040 is 4054004354003.

It is a tau number, because it is divible by the number of its divisors (80).

It is a junction number, because it is equal to n+sod(n) for n = 30045340044988 and 30045340045006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30045340045043) 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, 14514575 + ... + 16454894.

It is an arithmetic number, because the mean of its divisors is an integer number (891121723674).

Almost surely, 230045340045040 is an apocalyptic number.

It is an amenable number.

30045340045040 is an abundant number, since it is smaller than the sum of its proper divisors (41244397848880).

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

30045340045040 is a wasteful number, since it uses less digits than its factorization.

30045340045040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30969730 (or 30969724 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 32.

Adding to 30045340045040 its reverse (4054004354003), we get a palindrome (34099344399043).

The spelling of 30045340045040 in words is "thirty trillion, forty-five billion, three hundred forty million, forty-five thousand, forty".

Divisors: 1 2 4 5 8 10 16 20 40 67 80 134 181 268 335 362 536 670 724 905 1072 1340 1448 1810 2680 2896 3620 5360 7240 12127 14480 24254 48508 60635 97016 121270 194032 242540 485080 970160 30969469 61938938 123877876 154847345 247755752 309694690 495511504 619389380 1238778760 2074954423 2477557520 4149908846 5605473889 8299817692 10374772115 11210947778 16599635384 20749544230 22421895556 28027369445 33199270768 41499088460 44843791112 56054738890 82998176920 89687582224 112109477780 165996353840 224218955560 375566750563 448437911120 751133501126 1502267002252 1877833752815 3004534004504 3755667505630 6009068009008 7511335011260 15022670022520 30045340045040