Search a number
-
+
30072951664608 = 25311319071453703
BaseRepresentation
bin1101101011001111001111…
…00110011110111111100000
310221110221112201010022000010
412311213213212132333200
512420203401111231413
6143543153454324520
76222461530326066
oct665474746367740
9127427481108003
1030072951664608
11964495a23a466
12345840a7b9740
1313a1b372465b8
1475d777dc6036
153723ee5d1dc3
hex1b59e799efe0

30072951664608 has 96 divisors (see below), whose sum is σ = 79681912240896. Its totient is φ = 9930389547008.

The previous prime is 30072951664607. The next prime is 30072951664643. The reversal of 30072951664608 is 80646615927003.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30072951664607) 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, 19960285 + ... + 21413987.

It is an arithmetic number, because the mean of its divisors is an integer number (830019919176).

It is a 1-persistent number, because it is pandigital, but 2⋅30072951664608 = 60145903329216 is not.

Almost surely, 230072951664608 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30072951664608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39840956120448).

30072951664608 is an abundant number, since it is smaller than the sum of its proper divisors (49608960576288).

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

30072951664608 is a wasteful number, since it uses less digits than its factorization.

30072951664608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1455736 (or 1455728 counting only the distinct ones).

The product of its (nonzero) digits is 13063680, while the sum is 57.

The spelling of 30072951664608 in words is "thirty trillion, seventy-two billion, nine hundred fifty-one million, six hundred sixty-four thousand, six hundred eight".

Divisors: 1 2 3 4 6 8 12 16 24 32 48 96 113 226 339 452 678 904 1356 1808 1907 2712 3616 3814 5424 5721 7628 10848 11442 15256 22884 30512 45768 61024 91536 183072 215491 430982 646473 861964 1292946 1453703 1723928 2585892 2907406 3447856 4361109 5171784 5814812 6895712 8722218 10343568 11629624 17444436 20687136 23259248 34888872 46518496 69777744 139555488 164268439 328536878 492805317 657073756 985610634 1314147512 1971221268 2628295024 2772211621 3942442536 5256590048 5544423242 7884885072 8316634863 11088846484 15769770144 16633269726 22177692968 33266539452 44355385936 66533078904 88710771872 133066157808 266132315616 313259913173 626519826346 939779739519 1253039652692 1879559479038 2506079305384 3759118958076 5012158610768 7518237916152 10024317221536 15036475832304 30072951664608