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70781300052 = 22341349412219
BaseRepresentation
bin100000111101011100…
…1001110110101010100
320202200212111121001120
41001322321032311110
52124430003100202
652303320523540
75054012060241
oct1017271166524
9222625447046
1070781300052
11280222203a1
12118746205b0
1368a0280a88
1435d66b45c8
151c93ee20bc
hex107ae4ed54

70781300052 has 48 divisors (see below), whose sum is σ = 169669752000. Its totient is φ = 22952298240.

The previous prime is 70781300027. The next prime is 70781300053. The reversal of 70781300052 is 25000318707.

It is a super-3 number, since 3×707813000523 (a number of 34 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 70781299986 and 70781300022.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70781300053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34402 + ... + 377817.

It is an arithmetic number, because the mean of its divisors is an integer number (3534786500).

Almost surely, 270781300052 is an apocalyptic number.

It is an amenable number.

70781300052 is an abundant number, since it is smaller than the sum of its proper divisors (98888451948).

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

70781300052 is a wasteful number, since it uses less digits than its factorization.

70781300052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 412616 (or 412614 counting only the distinct ones).

The product of its (nonzero) digits is 11760, while the sum is 33.

Adding to 70781300052 its reverse (25000318707), we get a palindrome (95781618759).

The spelling of 70781300052 in words is "seventy billion, seven hundred eighty-one million, three hundred thousand, fifty-two".

Divisors: 1 2 3 4 6 12 41 82 123 164 246 349 492 698 1047 1396 2094 4188 14309 28618 42927 57236 85854 171708 412219 824438 1236657 1648876 2473314 4946628 16900979 33801958 50702937 67603916 101405874 143864431 202811748 287728862 431593293 575457724 863186586 1726373172 5898441671 11796883342 17695325013 23593766684 35390650026 70781300052