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538263740160 = 28375593259
BaseRepresentation
bin1111101010100110000…
…01001101111100000000
31220110100112012010000000
413311103001031330000
532304331004141120
61051135220000000
753613451205166
oct7652301157400
91813315163000
10538263740160
11198304937853
128839b530000
133b9b1599743
141c0a2d8b236
15e004ea2990
hex7d5304df00

538263740160 has 576 divisors, whose sum is σ = 1967047488000. Its totient is φ = 141060870144.

The previous prime is 538263740143. The next prime is 538263740171. The reversal of 538263740160 is 61047362835.

538263740160 is a `hidden beast` number, since 5 + 3 + 8 + 2 + 637 + 4 + 0 + 1 + 6 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (576).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

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, 165160611 + ... + 165163869.

It is an arithmetic number, because the mean of its divisors is an integer number (3415013000).

Almost surely, 2538263740160 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 538263740160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (983523744000).

538263740160 is an abundant number, since it is smaller than the sum of its proper divisors (1428783747840).

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

538263740160 is an frugal number, since it uses more digits than its factorization.

538263740160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3360 (or 3328 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 45.

The spelling of 538263740160 in words is "five hundred thirty-eight billion, two hundred sixty-three million, seven hundred forty thousand, one hundred sixty".