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70485187500 = 22365671317
BaseRepresentation
bin100000110100100111…
…1101001101110101100
320201221020022112000000
41001221033221232230
52123323202000000
652214102104300
75043455131320
oct1015117515654
9221836275000
1070485187500
1127990061682
12117b141b090
136853b14550
1435a9233980
151c78000000
hex10693e9bac

70485187500 has 1176 divisors, whose sum is σ = 301254268896. Its totient is φ = 13996800000.

The previous prime is 70485187489. The next prime is 70485187529. The reversal of 70485187500 is 578158407.

It is a happy number.

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

It is an unprimeable number.

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 391 ways as a sum of consecutive naturals, for example, 4146187492 + ... + 4146187508.

It is an arithmetic number, because the mean of its divisors is an integer number (256168596).

Almost surely, 270485187500 is an apocalyptic number.

70485187500 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 70485187500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (150627134448).

70485187500 is an abundant number, since it is smaller than the sum of its proper divisors (230769081396).

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

70485187500 is an equidigital number, since it uses as much as digits as its factorization.

70485187500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89 (or 47 counting only the distinct ones).

The product of its (nonzero) digits is 313600, while the sum is 45.

The spelling of 70485187500 in words is "seventy billion, four hundred eighty-five million, one hundred eighty-seven thousand, five hundred".