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70081640484 = 22336137161611
BaseRepresentation
bin100000101000100110…
…0001111100000100100
320200220002222012120020
41001101030033200210
52122011344443414
652110044435140
75030455054362
oct1012114174044
9220802865506
1070081640484
11277a3293849
12116ba248ab0
1367bb33062b
14356b7c8632
151c5288a7a9
hex105130f824

70081640484 has 24 divisors (see below), whose sum is σ = 163529364768. Its totient is φ = 23359755840.

The previous prime is 70081640471. The next prime is 70081640501. The reversal of 70081640484 is 48404618007.

It is a happy number.

It is a super-2 number, since 2×700816404842 (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 352839 + ... + 514449.

It is an arithmetic number, because the mean of its divisors is an integer number (6813723532).

Almost surely, 270081640484 is an apocalyptic number.

It is an amenable number.

70081640484 is an abundant number, since it is smaller than the sum of its proper divisors (93447724284).

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

70081640484 is a wasteful number, since it uses less digits than its factorization.

70081640484 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197755 (or 197753 counting only the distinct ones).

The product of its (nonzero) digits is 172032, while the sum is 42.

The spelling of 70081640484 in words is "seventy billion, eighty-one million, six hundred forty thousand, four hundred eighty-four".

Divisors: 1 2 3 4 6 12 36137 72274 108411 144548 161611 216822 323222 433644 484833 646444 969666 1939332 5840136707 11680273414 17520410121 23360546828 35040820242 70081640484