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75356838144 = 283272192432
BaseRepresentation
bin100011000101110011…
…1100001100100000000
321012111202012000100100
41012023213201210000
52213312322310034
654341330322400
75305261361400
oct1061347414400
9235452160310
1075356838144
1129a5aa74935
1212730a29400
13714c1b4a73
14390c244800
151e60a52099
hex118b9e1900

75356838144 has 729 divisors, whose sum is σ = 273095596683. Its totient is φ = 19922982912.

The previous prime is 75356838113. The next prime is 75356838149. The reversal of 75356838144 is 44183865357.

The square root of 75356838144 is 274512.

It is a perfect power (a square), and thus also a powerful number.

75356838144 is a `hidden beast` number, since 7 + 5 + 3 + 568 + 38 + 1 + 44 = 666.

It is a super-2 number, since 2×753568381442 (a number of 23 digits) contains 22 as substring.

Its product of digits (9676800) is a multiple of the sum of its prime factors (160).

It is not an unprimeable number, because it can be changed into a prime (75356838149) by changing a digit.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 1752484587 + ... + 1752484629.

Almost surely, 275356838144 is an apocalyptic number.

75356838144 is the 274512-nd square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 75356838144

75356838144 is an abundant number, since it is smaller than the sum of its proper divisors (197738758539).

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

75356838144 is a wasteful number, since it uses less digits than its factorization.

75356838144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160 (or 74 counting only the distinct ones).

The product of its digits is 9676800, while the sum is 54.

The spelling of 75356838144 in words is "seventy-five billion, three hundred fifty-six million, eight hundred thirty-eight thousand, one hundred forty-four".