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70311530050 = 2521406230601
BaseRepresentation
bin100000101111011100…
…1001100111001000010
320201111010112210202121
41001132321030321002
52122444222430200
652144540034454
75036246100346
oct1013671147102
9221433483677
1070311530050
1127901031223
1211763232a2a
136826b51568
14359014b626
151c67b4ae1a
hex105ee4ce42

70311530050 has 12 divisors (see below), whose sum is σ = 130779445986. Its totient is φ = 28124612000.

The previous prime is 70311530041. The next prime is 70311530053. The reversal of 70311530050 is 5003511307.

It can be written as a sum of positive squares in 3 ways, for example, as 42869288401 + 27442241649 = 207049^2 + 165657^2 .

It is a super-2 number, since 2×703115300502 (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a junction number, because it is equal to n+sod(n) for n = 70311529997 and 70311530024.

It is not an unprimeable number, because it can be changed into a prime (70311530053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 703115251 + ... + 703115350.

Almost surely, 270311530050 is an apocalyptic number.

70311530050 is a deficient number, since it is larger than the sum of its proper divisors (60467915936).

70311530050 is a wasteful number, since it uses less digits than its factorization.

70311530050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1406230613 (or 1406230608 counting only the distinct ones).

The product of its (nonzero) digits is 1575, while the sum is 25.

The spelling of 70311530050 in words is "seventy billion, three hundred eleven million, five hundred thirty thousand, fifty".

Divisors: 1 2 5 10 25 50 1406230601 2812461202 7031153005 14062306010 35155765025 70311530050