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70320771488 = 251141163167179
BaseRepresentation
bin100000101111101110…
…0011101000110100000
320201111202221022122002
41001133130131012200
52123004104141423
652145510103132
75036420460332
oct1013734350640
9221452838562
1070320771488
1127906273480
121176634aaa8
136828a38a76
143591475452
151c68874228
hex105f71d1a0

70320771488 has 192 divisors, whose sum is σ = 157469598720. Its totient is φ = 30635366400.

The previous prime is 70320771461. The next prime is 70320771517. The reversal of 70320771488 is 88417702307.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 392853383 + ... + 392853561.

It is an arithmetic number, because the mean of its divisors is an integer number (820154160).

Almost surely, 270320771488 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 70320771488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78734799360).

70320771488 is an abundant number, since it is smaller than the sum of its proper divisors (87148827232).

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

70320771488 is a wasteful number, since it uses less digits than its factorization.

70320771488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 571 (or 563 counting only the distinct ones).

The product of its (nonzero) digits is 526848, while the sum is 47.

The spelling of 70320771488 in words is "seventy billion, three hundred twenty million, seven hundred seventy-one thousand, four hundred eighty-eight".