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70688005696 = 2671123769811
BaseRepresentation
bin100000111010101010…
…1010101111001000000
320202110100221202021001
41001311111111321000
52124232112140241
652250145141344
75051500064110
oct1016525257100
9222410852231
1070688005696
1127a84599a20
121184932a854
136886b47509
1435c814b040
151c8ac14431
hex1075555e40

70688005696 has 224 divisors, whose sum is σ = 182950225920. Its totient is φ = 26276659200.

The previous prime is 70688005693. The next prime is 70688005699. The reversal of 70688005696 is 69650088607.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (70688005693) and next prime (70688005699).

It is a tau number, because it is divible by the number of its divisors (224).

It is not an unprimeable number, because it can be changed into a prime (70688005693) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 87161131 + ... + 87161941.

It is an arithmetic number, because the mean of its divisors is an integer number (816742080).

Almost surely, 270688005696 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 70688005696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91475112960).

70688005696 is an abundant number, since it is smaller than the sum of its proper divisors (112262220224).

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

70688005696 is a wasteful number, since it uses less digits than its factorization.

70688005696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1633 (or 1623 counting only the distinct ones).

The product of its (nonzero) digits is 4354560, while the sum is 55.

The spelling of 70688005696 in words is "seventy billion, six hundred eighty-eight million, five thousand, six hundred ninety-six".