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70747042452 = 22329727279637
BaseRepresentation
bin100000111100011011…
…0100011001010010100
320202121111001010110120
41001320312203022110
52124342220324302
652300054351540
75053114636662
oct1017066431224
9222544033416
1070747042452
1128004952129
121186505b5b0
136896147bc8
1435d1d17c32
151c90ec69bc
hex1078da3294

70747042452 has 48 divisors (see below), whose sum is σ = 171004229760. Its totient is φ = 22737762432.

The previous prime is 70747042447. The next prime is 70747042453. The reversal of 70747042452 is 25424074707.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70747042453) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 113178 + ... + 392814.

It is an arithmetic number, because the mean of its divisors is an integer number (3562588120).

Almost surely, 270747042452 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 70747042452, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (85502114880).

70747042452 is an abundant number, since it is smaller than the sum of its proper divisors (100257187308).

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

70747042452 is a wasteful number, since it uses less digits than its factorization.

70747042452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280400 (or 280398 counting only the distinct ones).

The product of its (nonzero) digits is 439040, while the sum is 42.

The spelling of 70747042452 in words is "seventy billion, seven hundred forty-seven million, forty-two thousand, four hundred fifty-two".

Divisors: 1 2 3 4 6 12 29 58 87 116 174 348 727 1454 2181 2908 4362 8724 21083 42166 63249 84332 126498 252996 279637 559274 838911 1118548 1677822 3355644 8109473 16218946 24328419 32437892 48656838 97313676 203296099 406592198 609888297 813184396 1219776594 2439553188 5895586871 11791173742 17686760613 23582347484 35373521226 70747042452