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75230696640 = 26351141473697
BaseRepresentation
bin100011000010000011…
…0010101010011000000
321012011221211100201210
41012010012111103000
52213033024243030
654321022530120
75302200241041
oct1060406252300
9235157740653
1075230696640
11299a5848960
12126b6736940
13712c01a618
1438d95aa8c8
151e54936bb0
hex11841954c0

75230696640 has 448 divisors, whose sum is σ = 272680224768. Its totient is φ = 17409638400.

The previous prime is 75230696617. The next prime is 75230696657. The reversal of 75230696640 is 4669603257.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 75230696640.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 20347272 + ... + 20350968.

It is an arithmetic number, because the mean of its divisors is an integer number (608661216).

Almost surely, 275230696640 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 75230696640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (136340112384).

75230696640 is an abundant number, since it is smaller than the sum of its proper divisors (197449528128).

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

75230696640 is a wasteful number, since it uses less digits than its factorization.

75230696640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3816 (or 3806 counting only the distinct ones).

The product of its (nonzero) digits is 1632960, while the sum is 48.

The spelling of 75230696640 in words is "seventy-five billion, two hundred thirty million, six hundred ninety-six thousand, six hundred forty".