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70252481790 = 234523311031181
BaseRepresentation
bin100000101101101011…
…1111100110011111110
320201100000102211210000
41001123113330303332
52122334113404130
652135030255130
75034631146111
oct1013327746376
9221300384700
1070252481790
1127880770407
12117474b74a6
13681784886a
14358637a578
151c62885260
hex105b5fccfe

70252481790 has 320 divisors, whose sum is σ = 205622157312. Its totient is φ = 17158521600.

The previous prime is 70252481773. The next prime is 70252481807. The reversal of 70252481790 is 9718425207.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (70252481773) and next prime (70252481807).

It is a super-2 number, since 2×702524817902 (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 59485000 + ... + 59486180.

Almost surely, 270252481790 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 70252481790, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (102811078656).

70252481790 is an abundant number, since it is smaller than the sum of its proper divisors (135369675522).

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

70252481790 is a wasteful number, since it uses less digits than its factorization.

70252481790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1357 (or 1348 counting only the distinct ones).

The product of its (nonzero) digits is 282240, while the sum is 45.

The spelling of 70252481790 in words is "seventy billion, two hundred fifty-two million, four hundred eighty-one thousand, seven hundred ninety".